Strachan said his side failed to take their chances

Captain Stephen McManus was carried off after a clash of heads with Daniel Cousin and is doubtful for Wednesday's Champions League game against Benfica.

"The better team won. We had a few chances but it's a surprising game because Artur Boruc has not made a save," said Strachan.

"We did make chances but didn't take them. They made chances and took them."

Interview: Celtic manager Gordon Strachan

Strachan said he was hopeful McManus would recover in time to face Benfica.

"That was a problem at half-time, when he was in the dressing room and we were worried about Stephen, really concerned.

"The fact is that he's regained consciousness, so I was going to pop in and see him, but it's a waste of time just now because he'll be having a lot of tests at the moment.

"We keep our fingers crossed that Stephen's going to be fine."