With their victory over Bournemouth, Arsenal moved up to the top of the Premier League four points ahead of Saturday’s remaining matches.
Just before halftime, the Gunners seized the lead thanks to a penalty kick, after controlling the first forty-five minutes.
Kai Havertz was brought down by Bournemouth goalkeeper Mark Travers and Bukayo Saka coolly rolled the ball into the net from the resulting spot-kick.
Arsenal doubled their lead in the 70th minute when Declan Rice won the ball on the edge of the box and teed up Leandro Trossard, who curled the ball home from inside the area, before Rice scored in added time to boost the Gunners’ goal difference.
Bournemouth threatened a lot more in the second period and Dominic Solanke forced David Raya into a save in the second half before Justin Kluivert flashed a shot wide.
The Cherries thought they had pulled a goal back through Antoine Semenyo but his strike was ruled out for a foul on David Raya by Solanke in the build up.
Arsenal centre-back Gabriel also had a goal ruled out late on for offside after he smashed a volley into the top corner.
The victory means Arsenal are clear at the top but their four-point lead may only last a few hours as title rivals Manchester City play later this afternoon.