New Sunderland signing Kader Mangane told to work on fitness by Martin O'Neill

Kader Mangane: A crucial addition to the Sunderland squad but must first get fit

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Martin O'Neill is convinced that Kader Mangane has the strength to make an impact at Sunderland, but he must first reach full fitness.

Senegal international Mangane is a towering central defender and O'Neill believes he will be a crucial addition to the squad, following his arrival on loan from Al-Hilal.

However, the Black Cats boss admits it may take some time before the 29-year-old is completely ready to be thrown into Premier League action.

"He's got a great physique and presence and certainly has what it takes to do the job," O'Neill said in the Daily Star.

"But it's fair to say that Kader's a little bit behind the rest of the lads in terms of fitness.

"Once he's fully fit, he'll be pushing for a start in a position where we've been really stretched of late."

O'Neill added: "Whenever a loan signing comes in from abroad, part of the deal is that there has to be an option at the end of the deal for a permanent signing and that's the case with Kader."