Substitute Costa slipped the ball past the keeper from close range in the 48th minute of the second half to break the deadlock and extend Brazil's winning run to 11 matches.
Colombia's World Cup campaign roared back into life with a 3-0 win over Poland in Group H on a sweltering evening at the Kazan Arena which sent the Poles tumbling out of the tournament on Sunday.
IMAGES from an exciting Europa League semi-final first leg match played at Emirates Stadium on Thursday
Arsenal fought back from a goal down against old foes Chelsea to reach the League Cup final as Granit Xhaka poked home to complete a 2-1 second-leg win on Wednesday that set up a Wembley showdown with Manchester City.
Lionel Messi led Barcelona to a 3-1 win at home to Napoli for a 4-2 aggregate victory which took the club into the Champions League quarter-finals, where they face Bayern Munich.
Here are five talking points from the weekend's Premier League action:
A summary of Thursday's matches in the Europa League.
Images from the English Premier League matches played on Sunday
Images from the English Premier League matches played on Saturday.
A Lionel Messi masterclass, netting a brilliant free kick before laying on two more goals, put Argentina's World Cup qualifying campaign back on track with a resounding 3-0 win over Colombia in San Juan on Tuesday.
The 41-year-old has made 640 appearances in Serie A, within striking distance of the 647-game record of AC Milan defender Paolo Maldini. Buffon began his career at Parma before moving to the Turin club in 2001.
The battle to avoid relegation is now a straight shootout between Hull City and 17th-place Newcastle United, who are two points better off heading into Sunday's final round.
Having beaten Colombia in a tense Round of 18 match at the World Cup England can now look forward to a quarter-final against Sweden with the curse of the shootout lifted.
Argentina and Brazil both lost their opening World Cup qualifiers on Thursday as the South American campaign for Russia 2018 started in unexpected fashion.
Arsenal stayed ahead of Manchester United in the race to qualify directly for next season's Champions League when they drew 1-1 at Old Trafford on Sunday while Manchester City made sure of their place in the group stage with a 4-2 win at Swansea City.
Images from the football matches played across Europe on Wednesday.
AC midfielder Franck Kessie scored from a penalty to give AC Milan a 2-2 draw away to Napoli in Serie A on Sunday, sparing the blushes of his goalkeeper Gianluigi Donnarumma whose mistakes provided the hosts with both their goals. Sevilla closed in on Champions League qualification by beating struggling Real Mallorca 2-0 at home to open up a nine-point gap in the race for fourth spot in La Liga.
Danny Welbeck's hat-trick in a 4-1 thrashing of a feeble Galatasaray side helped ignite Arsenal's Champions League campaign in a lop-sided Group D clash in north London on Wednesday.
A round-up of Sunday's action in the South American World Cup qualifiers.
Sutton United's FA Cup fairytale ended as Arsenal forward Theo Walcott scored his 100th goal for the club in a 2-0 fifth round victory on a surreal night at Gander Green Lane on Monday.
Argentina can look forward to a mouthwatering Copa America semi-final clash with Brazil after delivering a much-improved display to beat Venezuela 2-0 in the quarter-finals in their first game at the Maracana since losing the 2014 World Cup final.
Striker Marcus Rashford scored a second-half winner as a young and much-changed England avoided an unprecedented fourth successive defeat by beating Switzerland 1-0 in a friendly on Tuesday.
He also finished the season five goals clear of the next leading scorer, Cristiano Ronaldo of Juventus.
A summary of Thursday night's UEFA Champions League matches.
Mourinho's side failed to turn their domination into more goals and things got edgy late on when Saville's shot evaded Gazzaniga who seemed slow to get down.
Arsenal ended their away hoodoo against Premier League title challengers with a 2-0 victory at Manchester City on Sunday that left Chelsea five points clear at the top.
Jose Mourinho suffered a nightmare homecoming as Porto, the club he led to the Champions League title in 2004, inflicted a 2-1 defeat on his woefully out-of-sorts Chelsea side in Group G on Tuesday.
Images from the UEFA Champions League matches played across Europe on Wednesday
The Greek league leaders confirmed the move but did not give financial details. Local media said Toure would be paid around 2.5 million euros ($2.9 million) for one season.
Photos from the UEFA Champions League last 16 first leg-matches played on Wednesday
Lionel Messi, Luis Suarez and Neymar combined to devastating effect as Barcelona swatted Celtic aside 7-0 at the Nou Camp to lay down a marker in Champions League Group C on Tuesday.
Inter Milan staged a late smash-and-grab raid as goals by Mauro Icardi and Matias Vecino secured a 2-1 home win over Tottenham Hotspur in their Champions League Group B opener on Tuesday.
Atletico Madrid sealed top spot in Champions League Group D after second half goals from Frenchmen Kevin Gameiro and Antoine Griezmann but Napoli were held to a 0-0 Champions League draw at home by Dynamo Kiev.
A superb 83rd minute free-kick from captain Neymar gave Brazil a winning start under new coach Dunga as they beat Colombia 1-0 in a fiercely contested friendly on Friday.
Argentina remain winless in South American qualifying for the 2018 World Cup after struggling to a 0-0 in Paraguay on Tuesday, while Uruguay and Ecuador both made it two wins from two games to top the group.
Andy Carroll scored a eight-minute hat-trick as West Ham United's last London derby at Upton Park ended in a barnstorming 3-3 draw with Arsenal on Saturday -- a result that dented both club's respective ambitions.
Alexis Sanchez had equalised for the visitors, scoring on the rebound after Manuel Neuer saved his 30th-minute penalty but the Gunners suffered when captain Laurent Koscielny limped off injured to leave the defence exposed.
Following is a match by match look at the English Premier League's season-opening weekend fixtures:
Juventus raced into a 2-0 halftime lead after Napoli goalkeeper Alex Meret was sent off in the 25th minute. The visitors then had Pjanic dismissed and Napoli's Jose Callejon pulled one back before Insigne let the Turin side off the hook.
Coach Pep Guardiola was left thrilled after ManchesterCity revived their Champions League bid by beating his old club Barcelona 3-1 in a gloriously open Group C encounter at the Etihad Stadium on Tuesday.