Martin Keown has told the Daily Mail that he has some concerns over Sunderland's signing of Jermain Defoe.
The Black Cats are set to announce Defoe's arrival in the near future and they will be expecting him to score the goals to fire them up the table.
Keown is not convinced that he will be able to have the desired impact though, due to his time spent away from the English game with FC Toronto.
"I’m a bit worried by this move," he said during the Daily Mail's 'Tackle Keown' Q&A.
"I don’t know why he wanted to go to Canada in the first place – I think he became disillusioned by not being a regular player at Tottenham.
"It seemed like a chance he couldn’t turn down but I don’t think it was thought through well enough. He’s a big footballing person but Canada looks like it was a big mistake."
Keown did go on to state that Defoe was a 'top talent', but there are question marks over just how effective he will be at the age of 32.
The England international's main weapons in his prime were his blistering speed and dead-eye finishing but, after losing a yard of pace, his threat may have diminished somewhat.
In MLS Defoe still had a decent scoring record - notching 11 times in 19 games - and if he can emulate those sort of figures on his return to the Premier League he is sure to be a major hit.