Striker Alfredo Morelos has issued an apology to Rangers fans following his fifth dismissal of the season in Sunday's Old Firm derby.
The Colombian saw red for an off-the-ball elbow on Celtic skipper Scott Brown in the Gers' 2-1 defeat.
His manager, Steven Gerrard, said after the game that he could no longer defend Morelos after another costly incident.
Morelos said in a post on his Twitter account: "Good afternoon, I would like to offer an apology to all the fans, my team-mates and the coaching staff for what happened in yesterday's match.
"I promise to do everything in my power to ensure that nothing like that happens again & to give the club and the fans my all. Thanks for the support and affection you've always given me."