Albion manager Mark McGhee today warned Mark McCammon he will be under the microscope if he features in Saturday's showdown at home to West Ham.

The big target man is effectively on trial for the rest of the week following his half-time bust-up with McGhee at Burnley on Saturday.

McGhee will monitor him in training and a run-out in the reserves against Stevenage at Worthing tomorrow night before deciding whether to involve him in the relegation-threatened Seagulls' vital Championship clash against the play-off chasing Hammers at Withdean.

"If he does play against West Ham he is going to be scrutinised closer than any other player on the pitch, by our supporters, his team-mates and me," McGhee said.

"He is going to have to show us that he is 100 per cent at it. Any success we've had this year is by being a team and we cannot afford any outsiders."

McCammon apologised to McGhee yesterday morning before training for his outburst during the interval at Turf Moor.

He was substituted as a result and made his own way home from Lancashire after McGhee ordered him off the team coach, declining a lift in the club van with kit man Ken Barnard and football liaison manager Matt Hicks.

McGhee feels let down by McCammon's behaviour, not least because he has showed more faith in him than any other manager.

He signed the 26-year-old from Brentford when he was in charge of Millwall and in February gave him a contract until the end of next season following a loan stint with the Seagulls.

"That obviously amplified my anger over the situation," McGhee said.

"I still believe Mark can be an effective player for us, but it's not just going to be about me working on the training ground with him and having faith with him.

"It is also going to be about him. He has to knuckle down and start to do the things a player with his physical abilities should be doing.

"That includes engaging his brain when he is playing. On Saturday I felt he was out there not thinking about what he was supposed to be doing."

Adam Virgo will play through the pain barrier again against the Hammers.

Albion's mtchwinner at Upton Park in November, switched back into the defence at Burnley to accomodate McPhee, is nursing a knee problem and has been withdrawn from the Scotland Future squad for this week's friendly in Austria.

McGhee revealed: "Virgs is playing with an injury. He has damaged a cartilage. We think and hope he will be able to see it through to the end of the season.

"He is prepared to play in pain. He felt as if he was a little bit off the pace, but Virgs at 80 per cent will do me."