By Kenny MacDonald

GLASGOW (Reuters) - Celtic manager Gordon Strachan is hoping his side will show no ill-effects against Dunfermline after an exciting Champions League clash with Manchester United in midweek.

They lost 3-2 in a classic encounter at Old Trafford in their Group F match, with United manager Alex Ferguson saying his side could have scored 10.

Strachan countered at a news conference on Friday: "We could have had six or seven so it could've been a heck of a game. Jan Vennegoor of Hesselink had probably the best chance out of anybody when he had a free header. It would've been different (if that had gone in.)"

Celtic take on Dunfermline at home on Saturday in the Scottish Premier League (SPL) and Strachan said he expected the visitors to be forced into defending.

"I think you have to be fair on the teams that come here -- I don't think they come to close up shop, we tend to attack and make them do that."

Celtic skipper Neil Lennon welcomed Friday's news that new signing Thomas Gravesen was retiring from international football with Denmark and said: "Without a doubt it benefits Celtic.

"It shows he is going to be fully committed to the club now and I think he wants to just concentrate solely on his club career."