Arsenal midfielder Mikel Arteta reportedly stormed off in anger while having a photo taken with an Everton supporter.
The Spaniard was on the losing side of his former club's 3-0 victory over the Gunners at Goodison Park on Sunday.
After the match, Arteta appeared to happily pose with an Everton fan, but angrily pulled away when the supporter lifted three fingers to mirror the result, according to 101greatgoals.com.
Everton are now just one point behind fourth-placed Arsenal in the table, with a game in hand.
