Ole Gunnar Solskjaer might have restored positivity at Manchester United, but Chris Smalling insists the caretaker manager has a "nasty side".
United won 10 and drew one of their first 11 games after the former striker succeeded Jose Mourinho in December, with his unbeaten run coming to an end against Paris Saint-Germain in the Champions League on Tuesday.
Solskjaer has won praise both for improving United's standard on the pitch and for lifting the morale around Old Trafford following a tough final few months under Mourinho.
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But while Smalling says he is "a joy to play under", he claims Solskjaer is not afraid to use a stricter approach when needed.