LONDON – Manchester United midfielder Michael Carrick said Alex Ferguson was a "one-off" and "arguably the best manager of all time" as the veteran Scottish boss prepared Sunday to take charge of his final home match at Old Trafford before retirement. After more than 26 years, yielding 38 major trophies, at United the 71-year-old Ferguson stunned the sporting world by announcing Wednesday he would retire at the end of the season. The English champions moved swiftly to announce a replacement in fellow Glaswegian David Moyes, highly regarded for his work with United's Premier League rivals Everton. "It has been a strange week to say the least. Everyone is still coming to terms with the fact he is leaving and a new manager is coming in," Carrick said ahead of Ferguson's Old Trafford farewell against Swansea later Sunday. –AFP