The Football Association is to look into Liverpool forward Ryan Babel’s posts on Twitter.
Babel forwarded on a mocked-up picture of Webb in a United shirt and also said: “And they call him one of the best referees. That’s a joke.”
The Dutchman later removed the posts before apologising to Webb.
“My apology if they take my posted picture seriously. This is just a emotional reaction after losing an important game,” he said.
“Sorry Howard Webb.”
Ryan Giggs scored what proved to be the winner from the spot-kick Webb gave for Daniel Agger’s apparent foul on Dimitar Berbatov, while Gerrard was sent off after 32 minutes for a challenge on Michael Carrick.
Liverpool manager Kenny Dalglish labelled the penalty decision “a joke” and also disagreed with the brandishing of a red card for his captain as his side lost 1-0.
Babel came on as a substitute an hour into the match at Old Trafford but failed to help his side engineer a comeback before his Twitter outburst after the game.
The FA commented before the player’s apology that “we will definitely look into this matter”.
By freelance writer Dan Leaton.