Reports from Italy suggested the player was wanted at Old Trafford over the summer.

But now Calciomercato claim Chelsea have entered the race for the Argentina star.

The 29-year-old rejected a new contract with current club Lazio last month to throw his future into doubt.

United are well stocked in central midfield following the arrivals of Bastian Schweinsteiger and Morgan Schneiderlin during the transfer window.

WANTED: Chelsea have joined Man United in the hunt for Biglia

And that could leave Chelsea in the clear to land Biglia in January, with Blues boss Mourinho desperate to rejig his squad following their dreadful start to the season.

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The defending Premier League champions are all but out of the title race after yesterday's 3-1 defeat at home to Southampton left them 10 points adrift of leaders Manchester City and in total disarray.

Biglia could act as a replacement for Nemanja Matic.

Last season's standout midfield enforcer has struggled this season and may be replaced in January in a total squad overhaul from Mourinho.