Scottish League: Leaders Celtic were held to a 3-3 home draw by Dundee United on Saturday.

Celtic manager Gordon Strachan admited that when they were 3-1 up he was about to deploy Roy Keane in a defensive role to hold their advantage - but the Cork man had nipped to the toilet.

But, just as Keane returned and was ready for action, United stunned their hosts by pulling a goal back, before grabbing a late equaliser.

John Hartson got the opener after just nine minutes and, although that was cancelled out by David Fernandez, Celtic looked set to take all three points thanks to goals from Maciej Zurawski and Stilian Petrov.

But substitute Lee Miller pulled a goal back for United within a couple of minutes of being on the park, before former Celt Fernandez snatched a late equaliser.

Explaining the substitution that never was, Celtic manager Gordon Strachan said: "At the first point when we were going to put Roy on, he disappeared to the toilet. We had one plan at 3-1 and another plan at 3-2.

"But, by the time we had spoken to Roy about that one, another goal had gone in and I had to keep on all my attackers.

"It was going to be a shutting up job at 3-1 but we didn't have the time to get him on."

Elsewhere, Paul Hartley struck twice as Hearts hammered third-placed Hibernian 4-1 in the Edinburgh derby.

Strachan also confirmed yesterday that Ireland midfielder Aiden McGeady faces up to eight weeks on the sidelines after suffering a knee injury in training on Friday.

The 19-year-old is facing a possible two months out of action. Strachan said: "It is not a good one - it was just unfortunate. He went in for a 50-50 challenge and it was a block tackle. It will be six to eight weeks, I think."

Rangers handed a debut defeat to Inverness Caledonian Thistle's new manager Charlie Christie by recording a 3-2 win yesterday.