Roy Keane will not be fit for Manchester United's Champions League clash with Bayer Leverkusen tomorrow - but could recover from his hamstring injury in time for Tuesday's second leg.

The United skipper resumed training yesterday after tearing his hamstring against Deportivo La Coruna three weeks ago.

Manager Sir Alex Ferguson is pleased by his rapid recovery after he had predicted that his Republic of Ireland midfielder would be out for four to six weeks.

Ferguson claimed Keane's rehabilitation has been accelerated by the use of an oxidisation cylinder.

Ferguson said: "He trained yesterday and he's trained this morning, but he won't play tomorrow.

"Hopefully maybe next Tuesday he will be ready. I've been very surprised at his progress - he's remarkable.

"I think the treatment we have given him was different. He spent three days in an oxidisation cylinder, four and half hours a day, and that certainly helped his recovery.

"He had treatment on Sunday, came in the next day and felt great and wanted to train with us."

In addition to the injured David Beckham and Ronny Johnsen, United will also be without Quinton Fortune, who has a hamstring injury.

However, Juan Sebastian Veron has recovered from his Achilles trouble and will line up in midfield.