Everton fans were already feeling down after their side lost 5-2 at home to Arsenal on Sunday , so they probably didn't need this.
Because just minutes after the Blues had lost thr game, the club's main shirt sponsor sent a tweet seemingly celebrating the Gunners' victory and wishing Arsene Wenger a happy birthday.
The tweet read "Well in Gunners! A superb gift by the players for the birthday gaffer! #MadeOfWinners."
It was swiftly deleted, but not before fans spotted it.
SportPesa - a gambing firm based in Kenya - became Everton's main shirt sponsor in May, signing a five-year deal.
Everton's shirt also features the computer game Angry Birds as their sleeve sponsor.