Bryan Robson pays tribute to Sir Alex Ferguson

Former Manchester United captain Bryan Robson says Sir Alex Ferguson is the "best club manager there's ever been".

Ferguson will retire at the end of the season after 26 years at the helm at Old Trafford, having won 38 trophies including 13 league titles.

Robson, who won two league titles under Ferguson, says he believes the announcement would have been a planned decision taken so he can spend more time with his family.