Arsenal fans will tell you that German defender Per Mertesacker is one of the nicest blokes in the football.
The World Cup winning centre-back is often involved in hilarious videos on the club's official YouTube channel and seems to have a brilliant sense of humour.
Although, his antics before their 2-1 win over Manchester City on Monday night, while funny to some, will seem revolting to others.
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Football players are known for their weird and wonderful pre-match rituals, but we are sure this is not part of the 31-year-old's normal preparations for a game.
A video has surfaced online that appears to show Mertesacker wiping his snot into the hair of a young Arsenal mascot as the teams lined up before kick-off.
In the clip below, the BFG can be seen shaking hands with Arsene Wenger before using his left thumb to pick his nose, which is questionable enough in the first instance.
He then walks up to the excited child before rubbing said thumb into the youngster's hair.
Now, we aren't going to sit here and say he definitely did it, we will leave the decision making up to you. Enjoy.
While the win over Manchester City proved to be a brilliant night for the Gunners, their performance on Boxing Day was the polar opposite.
Mertesacker and his defensive partner Laurent Koscielny were given the runaround by Shane Long and the Emirates outfit were outfought as they passed up the chance to go top of the league by falling 4-0 to Southampton.
Did Per Mertesacker wipe his nose in the mascot's hair? Leave your comments below