Amenda will undergo a scan to determine the severity of his calf injury and is ruled out for Saturday's clash against Nottingham Forest, according to coach Frank Lampard, per Andy Turner of Coventry Live. "Calf, we don't know how bad but, yeah, it was one of the reasons I took Steph off in the second half because we're getting shorter with that injury, which is always a worry when you're playing a midweek game like this. Let's not jump to conclusions [severity], we'll see. Yeah, I would expect him not available."