Colombia look fairly happy to play keep-ball now. Hassan summons one last burst of pace to beat Arias to the ball and win his side a rare corner. Can Qatar score here?
86'
D. Zapata has scored a goal for Colombia! Assist by J. Rodríguez.
GOAL FOR COLOMBIA! 1-0! Zapata finally beats the Qatari defence, steering a header into the net after James had too much time to float a ball over the top. That was delightful.
It's an assist for James, who Qatar should have known better than to give that much room. The Napoli-bound midfielder has made the difference here.
85'
James has another shot blocked, while Hassan blazes over from distance. Time is running out for either side to get a winner here.
84'
Ahmed Doozandeh enters the game and replaces Hassan Al Haydos.
It's another change for Qatar. Moein will come on for Al Haydos in midfield.
83'
Akram Afif gets yellow.
Afif manages to talk himself into the referee's book when he tangles with Arias and comes off the worse. Colombia free kick.
82'
Uribe has a shot blocked in the centre of the box. Another Colombia corner, another blank. Qatar manage to set Afif free down the left hand side but he can't find a teammate.
80'
It's another corner kick for Colombia. This time they take it short. Uribe eventually lofts the ball into the box for a striker to chase but it's confidently claimed by Al Sheeb.
78'
Not very much - Hassan gets his head to it. Falcao picks up the ball from deep and lets loose a peashooter from range. That won't be troubling Al Sheeb.
77'
Colombia are knocking on the door but Qatar are holding firm. Then again, Colombia have another corner - what can they do with it?
Minute
Description
75'
L. Díaz enters the game and replaces R. Martínez.
Colombia make their final change. On comes the Junior winger Diaz - he'll replace Martinez, who's faded in the past few minutes.
73'
M. Uribe gets yellow.
Pedro Miguel gets yellow.
Miguel also sees yellow for his part in the matter.
Uribe is booked for getting needlessly involved in the spat.
There's a flare-up between the sides as James gets past Miguel with some showboating and the right back decides to take him out. The officials haven't done the best at controlling this game.
72'
James stands over the free kick. It's a touch too far out for him to shoot so instead he lofts the ball in and Mina heads the ball straight into Al Sheeb's arms.
70'
Madibo needs to be careful after he arrives late on James just outside the box - he's already on a yellow, remember. He stares down the official and manages to get away with it.
66'
Karim Boudiaf enters the game and replaces Abdulaziz Hatem.
Qatar boss Felix Sanchez elects for his first substitution. Hatem is replaced by the more defensively minded Boudiaf.
64'
R. Falcao enters the game and replaces J. Cuadrado.
Colombia finally manage to make the change they wanted - it's Cuadrado who'll go off for Falcao.
63'
Qatar manage to test Ospina twice in quick succession - the first shot is from Hatem from a difficult angle, then Afif has a pop from range. The game's a little more open now.
60'
Qatar show they are still an attacking threat as Ali is caught offside from Hassan's pass.
59'
Colombia are preparing Falcao to come on. He's got hold of the captain's armband, which suggests that he'll be replacing James.
57'
Abdelkarim Hassan gets yellow.
Hassan is booked for a bad foul on Arias. Qatar have a tendency to pick up cards.
55'
James has a shot blocked. Colombia win a corner and again show their superiority in the air as Mina nods a header just past Al Sheeb's far post. Set pieces look like their best chance of scoring in this game.
53'
Back to the football for now. Al Haydos balloons a shot over from range after picking the ball up from Hatem.
48'
Colombia start the second half as they did the first, in control of the game without threatening hugely. Tequillo floats the ball towards the area and Khouhki heads it out for a corner.
46'
S. Arias enters the game and replaces S. Medina.
Qatar kick the second half off then. Will we get to see a goal in this game?
45' +2
The answer is no. Al Sheeb claws away the delivery towards the far post. That'll be that for now.
HALF TIME: COLOMBIA 0-0 QATAR
45' +1
Salman puts the ball out for a throw on the right. Medina throws it back in and Madibo sends Cuadrado to the turf near the corner flag. Can Colombia strike late in this first half?
45'
There will be two minutes of added time. Not very much is likely to happen at this rate.
Colombia have made a change at half-time: Medina has been replaced by the Atletico Madrid right back Arias. It looks like that'll be a straight swap.
44'
Assim Madibo gets yellow.
Madibo sees the first yellow card of the match as he gets his timing wrong in a challenge on Sanchez.
43'
Qatar are offering very little going forward. This game mostly seems a question of whether Colombia can score or not.
41'
Qatar can get upfield now. Al Rawi switches play to the left, presenting Hassan with a chance to whip the ball towards the far post. Miguel goes tumbling in the box, but it isn't a foul.
39'
Tesillo loops a cross in from the left, but nothing doing. Zapata lays off a delivery from the right to Medina, whose powerful toepoke hits the side netting.
37'
Al Rawi gives Colombia a corner, then Ali concedes another. Colombia's height and power at set-pieces is causing Qatar problems. Eventually Qatar get away with it as Cuadrado fouls Afif in the box.
33'
The officials were checking a suspected Qatar handball way back in the move that led to Cuadrado's cross. The ref isn't convinced and gives Qatar a free kick. This isn't enthralling stuff.
30'
Qatar get a brief chance to pass the ball from the back. Khouhki's attempted pass forward is poor and he's forced to steam across to prevent Martinez from shooting.
28'
Sanchez gobbles up an aimless long ball from the back towards Ali and sends Colombia back upfield. Qatar get some respite after Khouhki is knocked off balance, winning a foul.
27'
James tries to thread a through ball to Zapata but there are too many maroon shirts in the way. The ball winds up with Martinez who crosses in but Zapata's snap header is off target.
25'
Qatar are having to remain patient - this isn't like the other day where they were very much the more proactive side. Zapata twists and turns his way past Miguel and gets a cross in from the edge of the box. Al Haydos is on hand to hoof it away.
24'
Colombia look threatening from corners. This time Zapata nods the ball wide after it's served up to him at the far post.
23'
There's no real spark to the game so far, although Colombia have had their moments. Martinez tries to win back possession after losing it, pressuring Salman into giving away a corner.
21'
Afif goes down holding his head after Sanchez clambers over him while challenging for a header. Thankfully the winger looks to be fine.
19'
There's a brief delay as Khouhki has taken a knock. James tries to jink his way through the middle but finds himself blocked off. Colombia have had 61% of possession so far.
15'
Al Rawi punts the ball out for a throw down Colombia's right. Madibo can't keep the ball in play. Qatar are pinned in their half for now.
11'
James spots Medina in space wide on the right and makes the pass but Hassan closes the full-back down quickly. Colombia are just shading possession at this early stage.
9'
Cuadrado wins a foul in Qatar's half after Hatim brings him down. Colombia can't do anything with the free kick though.
7'
It's a slow start to the game with neither side wishing to make a mistake early on. Both teams are looking cautious at the moment.
5'
Colombia win their first corner of the game after Al Haydos is forced to put the ball behind. James takes the corner and Sanchez nods the ball down to Martinez who puts the ball in the back of the net, but the flag is up for offside.
3'
Colombia are penalised early on as Zapata commits handball. A good start by the group leaders.
1'
This Group B game is now underway!
Hello and welcome to our live text commentary of this Copa America Group B game between Colombia and Qatar at Estádio Cícero Pompeu de Toledo in Sao Paolo.
This is the second round of games in Group B, and Colombia are already in a great position to qualify for the knockout rounds after their late 2-0 victory over Argentina last week.
They'll be playing their first ever game against Asian champions Qatar, the tournament guests who showed they are made of stern stuff in their opening 2-2 draw with Paraguay. Qatar came back from 2-0 down and were by far the better side in that game. Colombia will have to be on their guard.
COLOMBIA (4-3-3): David Ospina; John Medina, Yerry Mina, Davinson Sanchez, William Tesillo; Juan Cuadrado, Wilmar Barrios, Mateus Uribe; James Rodriguez (c), Duvan Zapata, Roger Martinez.
SUBS: Gustavo Cuellar, Luis Diaz, Santiago Arias, Camilo Vargas, Radamel Falcao, Edwin Cardona, Jhon Lucumi, Cristian Borja, Alvaro Montero, Cristian Zapata, Jefferson Lerma.
QATAR (4-4-1-1): Saad Al Sheeb; Pedro Miguel, Bassam Al Rawi, Tarek Salman, Abdelkarim Hassan; Hassan Al Haydos (c), Assim Madibo, Boualem Khoukhi, Akram Afif; Abdelaziz Hatim; Almoez Ali.
SUBS: Ahmed Al Aaeldin, Salem Al Hajri, Hamid Ismaeil, Ahmad Moein, Ahmed Fathy, Mohammed Al Bakri, Tameem Mohammed, Ali Hassan Afif, Yousef Hassan, Abdullah Al Ahrak, Almahdi Ali, Karim Boudiaf.
Colombia's victory leaves them on six points at the top of Group B, five points clear of Paraguay who rise above Qatar on goal difference. Both Paraguay and Argentina will have the chance to stake their claim for second when they play each other in Belo Horizonte shortly.
Colombia can look ahead to Paraguay in the final Group B game, potentially having qualified for the next round already if Paraguay and Argentina draw. They look fairly certain to progress now - but who will join them? We'll soon find out. That's all for now. Goodbye!
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