Not only was he the greatest player, is now the greatest manager of all time he's now vying to become the greatest tipster of all time
Keane tips Utd to beat Celtic
Roy Keane believes Manchester United will overcome Celtic in Wednesday's 'Battle of Britain' encounter in the Champions League.
However, the former United and Celtic midfielder, now manager of Sunderland, expects Celtic to pose problems.
"When I retired, I felt United would get Celtic in the Champions League this year," he told BBC Radio Five Live.
"People should not underestimate Celtic but United seem to be in the groove and should win."
United boss Sir Alex Ferguson is keen for his players to concentrate on their football and not get "caught up in the emotion" of the match.
"What you have got to do with games like this is get rid of the Scotland-England rivalry because that only makes it harder," he said.
"It's easy to get caught up in the emotion if you are not careful because games like this don't come around very often."
