Jose Mourinho claims a 'nice guy' manager can end up becoming a 'puppet' — in what could be construed as a swipe at his Manchester United successor Ole Gunnar Solskjaer.

Mourinho also said that time has proved his methods at Old Trafford were not the problem.

The Portuguese, who led United to second in the Premier League last season, was sacked in December after a dismal start to the latest campaign.