Celtic's Ireland winger Aiden McGeady and Polish goalkeeper Artur Boruc were involved in a training ground bust-up before their club's Scottish Cup fifth round win over Queens Park on Saturday. McGeady, who has already been banned this season after a dispute with Strachan, was apparently involved in a dressingroom row with Boruc after training last Thursday. Speaking after the 2-1 win over the Second Division side, Strachan said, "Before we go any further, let me clear something up. "On Thursday at the training ground there was an altercation between Artur Boruc and Aiden McGeady. That has been sorted out by me. "I've spoken to the players and as far as I'm concerned it's finished. Thank you." Celtic made hard work of their passage to the Cup quarterfinals with first half goals from Gary Caldwell and Scott McDonald just enough to get them through. "It wasn't very good, it was disappointing," added Strachan. "I expected us to be relaxed in the second half but it worked the other way, our concentration and technical ability went down. "You hope that you set standards over the years and the teams that have played here before have set standards. You try and emulate them and you try and get better. "Players who have played here before would not have been proud of that performance and we are not proud of it. It's not a good standard to set for anybody to come after us. "So I think most of the praise has to go to Queen's Park." Celtic captain Stephen McManus missed the game with a knee injury but should be fit for the upcoming Old Firm derby at Parkhead.