Arsenal have been forced to take Mikel Arteta off in their game against Liverpool after the midfielder suffered some kind of injury. It's too early to tell exactly what happened to him, but due to the length of time that he was down before he could be taken off the pitch, it seems as if his injury was not simply a structural one. He took a shot to the head from Jordan Henderson early in the second half and it was more than five minutes before he was stretchered off the pitch.
Arteta was given oxygen before he was carried off and it was not obvious whether or not he was conscious when he left the pitch. He's been replaced in the Arsenal midfield by Abou Diaby, who hasn't played recently because of chronic injury issues.