Suarez's previous biting incident
Suarez likely faces a suspension for biting Branislav Ivanovic's upper arm during Liverpool's 2-2 draw with Chelsea at Anfield on Sunday.
Evra appeared to make fun of Suarez after United's 3-0 win over Aston Villa on Monday, collecting a joke arm when it was thrown onto the field from the crowd at Old Trafford and gesturing to bite into it. He then posed for pictures with the arm.
Suarez served an eight-game suspension last season for racially abusing Evra during an on-field confrontation, and then snubbed the defender during pregame handshakes later in the season.