Brazil vs Costa Rica
Brazil got two goals in stoppage time to give them a deserved 2-0 win over Costa Rica in a tense World Cup Group E encounter on Friday.
Philippe Coutinho stabbed home from six metres out in the 91st minute and then Neymar volleyed a second six minutes later to get the five-times world champions up and running in their pursuit of a sixth title.
Brazil were poor in the first half but pressed for goals in more urgent second period. However, they lacked poise in front of goal and Costa Rica keeper Keylor Navas was in fine form.
Neymar thought he had a penalty with 13 minutes remaining when the referee awarded a spot-kick, then changed his decision after a video assistant referee (VAR) review and adjudging he dived.
The result takes Brazil to the top of Group E with four points, while Costa Rica have none and therefore exit the competition. Serbia, who have three points, play Switzerland, who drew with Brazil in their opener, later on Friday.
Iceland vs Nigeria
Ahmed Musa returned to the line-up with devastating effect as he scored both goals for Nigeria to help them resuscitate their World Cup hopes in a 2-0 win over Iceland at the Volgograd Arena on Friday.
Left out of his country's opening Group D game at the tournament in Russia, Musa showed his worth with two outstanding strikes that put the Africans back in contention for a second round place.
The opening goal, soon after a drab first half, saw him pluck the ball out of the air with his first touch before blasting it home.
The second goal came in the 75th minute, when after a break down the wing, Musa cut inside and waltzed around the goalkeeper before firing the ball into the net.
Serbia vs Switzerland
A 90th-minute goal by Xherdan Shaqiri secured Switzerland a 2-1 victory over Serbia in a blistering-paced World Cup Group E match in Kaliningrad on Friday, putting them in a strong position to go through to the knockout round.
Shaqiri latched on to a pass in his own half with Serbia's players pushed up and carried the ball forward before slotting it past Vladimir Stojkovic.
Aleksandar Mitrovic had given Serbia a dream start when he rose and headed a floating Dusan Tadic cross firmly past Switzerland goalkeeper Yann Sommer five minutes into the game.

Aleksandar Mitrovic of Serbia celebrates scoring the goal with team mates during the 2018 FIFA World Cup Russia group E match between Serbia and Switzerland. Source: Getty Images
Serbia dominated the first half but Switzerland stormed back after the break. Granit Xhaka equalised when he picked up a rebound outside the penalty box and rifled it home in the 52nd minute.
Switzerland's victory left the group open, with them and Brazil on four points and Serbia on three. But the Swiss face an easier task with their last match against Costa Rica, who are already out.