Antoine Griezmann's brother started a storm on social media after posting a picture of Manchester United's Old Trafford on his Twitter account.
According to Alex Porter of the Manchester Evening News, Theo Griezmann posted a shot of the Theatre of Dreams with three praying emojis.
The tweet produced a furious response from Atletico Madrid supporters, prompting Griezmann's brother to delete his account.
Per Porter, Theo is a self-declared fan of United and has recently criticised Atleti manager Diego Simeone for his use of the French striker.
However, Porter explained the post might have been misconstrued by Spanish fans.