Ole Gunnar Solskjaer says he will be ready for the start of the new campaign despite doubts over his fitness.

The 34-year-old underwent further surgery on his troublesome knee earlier in the summer after suffering some discomfort towards the end of the last campaign.

Solskjaer says his recovery is going well and he is confident of being fit for the United's Premier League opener against Reading in August.

"I'll be starting from scratch, but I will be fit for the league opener," he said.

"I won't be able to play two matches a week all season, but if I regain top shape I hope to add upon what I achieved last season."

Solskjaer refuses to put a timescale on his career, insisting he will play on for as long as he is able.

"The knee will never be 100 per cent again, but as long as it doesn't hurt I'll continue to play," he added.

"I don't know how long I can continue. It might be over after this season or I might be able to play another season."