Arsenal scored two stoppage time goals to beat Manchester United 3-1 in the Premier League at the Emirates Stadium.
United forward Marcus Rashford and Arsenal captain Martin Odegaard traded goals in the first half.
In the second half, VAR intervened twice - Arsenal had a penalty overturned and United had a goal ruled out for offside.
Then Declan Rice found the net with a deflected effort in the 96th minute, and Gabriel Jesus wrapped up the victory 11 minutes into added time.
Earlier, Liverpool earned their third win of the season with a comfortable 3-nil victory over Aston Villa at Anfield.
A first Reds goal for Dominik Szoboszlai, an own goal by Matty Cash and an effort from Mo Salah gave Liverpool all three points.
In the other game of the day, Crystal Palace defeated Wolves 3-2 at Selhurst Park.
In the Scottish Premiership, Celtic beat Rangers 1-0 in the Old Firm Derby at Ibrox.
Kyogo scored the winner for Celtic.
Ireland's Liam Scales played the full 90 minutes for the Bhoys and was named man of the match.
Golf
Smilla Soenderby won the KPMG Women's Irish Open at Dromoland Castle in Clare.
The Dane carded a 10 under par round of 62 in regulation and then beat Anne Van Dam and Lisa Pettersson in a play off.
Leona Maguire finished best of the Irish in a tie for 14th place.
On the DP World Tour, Swede Ludvig Aberg took the Omega European Masters in Switzerland by 2 shots.
