William Gallas has apologised to the Arsenal staff for his miserable attitude during his two months on the sidelines, reports the Daily Mail.
"Sometimes I have been okay, but other times I have been very unhappy," said Gallas. "Because of that I know it might have been difficult for the rest of the group because I wasn't always smiling when I was in the dressing room.
"I have experienced it before. The first week or so you can deal with it, but three, four, five weeks later? It's hard to keep smiling. So I want to say sorry to all the players and all the staff."