Arsenal failed to go 12 points clear of Manchester City at the top of the Premier League table after they were defeated 2-1 by Bournemouth on Saturday.
The Gunners had opened a nine-point gap after a 2-0 win over Everton, with City held to a 1-1 draw at West Ham.
They were hoping to extend their advantage in the early kick-off.
But it was Bournemouth who took the lead in the first half, with Kroupi Jr tapping home at the near post.
Arsenal were level before the break thanks to a penalty converted expertly by Viktor Gyokeres.
The Cherries put a big dent in Arsenal’s title hopes with Alex Scott scoring a late winner at the Emirates.
City can close in if they win at Chelsea on Sunday.
EPL table: Arsenal fail to go 12 points clear after shock defeat to Bournemouth