By Arsenal correspondent Tony Hughes

Arsenal are set to receive a huge fitness boost ahead of Sunday’s clash against Chelsea, Football Insider sources understand.

Mesut Ozil and Alexis Sanchez are in line to return, although Eden Hazard is closing in on his comeback for the Premier League champions.

Arsenal’s star duo missed the team’s goal-less draw at Stoke last Sunday as Arsene Wenger chose to wrap them in cotton wool ahead of the landmark Premier League fixture against Chelsea at Emirates Stadium.

Ozil missed the game with what the Gunners claimed was a minor foot injury while Sanchez was deemed to be too much of a gamble to make his long-awaited return.

The Chilean has been sidelined since suffering a hamstring injury at Norwich on 29 November.

He has had a series of setbacks in his increasingly complicated recovery and, despite taking part in full training last Saturday, was deemed to be only 95 per cent fit by Wenger.

As revealed by Football Insider, the Arsenal manager is fearful that Sanchez could be out for another three months if he aggravates his hamstring problem.