STAR man Shaun Williams is an injury doubt for the south London derby.
The midfielder has been Millwall's most consistent performer this season but was having treatment yesterday after jarring his knee in training.
A decision was being taken on Wednesday as to whether Williams would need a scan.
But in a timely boost, manager Ian Holloway has confirmed that Spaniard Angel Martinez is over a calf problem and could be involved against rivals Charlton this weekend.
Martinez has yet to feature since joining the Lions in September but came through a reserve fixture against QPR unscathed and could be named in the squad at The Valley.
It's also hoped that Scott McDonald, who tweaked a groin muscle at the start of the international break, will recover in time, with the Australian hoping to train this morning.
Holloway said: "Martinez is fully fit and I might need him at Charlton because Williams got injured on Tuesday.
"We don't know the extent of it yet. He might need a scan and the earliest we can give him a scan is this morning. But he's certainly doubtful for the weekend."
Martinez, a key player for Holloway during his time in charge of Blackpool, was snapped up on a free transfer in the early weeks of the season but tore a muscle in training.
But now Lions fans may finally get a glimpse of the former Espanyol star.
"He's a different type of player to Williams," added Holloway. "Williams has played most of his career as a defender whereas Angel has been a Spanish no.6 or a no.8 all his life.
"I like him as a person because he's very solid, down to earth and very steady. He doesn't get flustered.
"He passes and cherishes the ball, he wants to move it around, but unfortunately when he first came in he wasn't as fit as I needed him to be. Hopefully his season starts now."