Red alert: Sanchez has been off the boil for the last month

By Arsenal correspondent Tony Hughes

Alexis Sanchez took part in full training for Arsenal as the team prepared for their Premier League clash against Stoke.

Sanchez was pictured on the Arsenal website on Saturday afternoon being put through his paces with the rest of the squad.

The Chilean played a full part in proceedings following his increasingly complicated recovery from a hamstring injury that has kept him out since late November.

Arsene Wenger must decide whether to select Sanchez in the matchday squad after admitting on Friday that it would be a “gamble” to play the forward at the Britannia Stadium on Sunday afternoon.

Asked for the latest on Sanchez, Wenger said: “He has two decisive days. Today and tomorrow. He’s fit. Do we take a gamble or not on his injury?”

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Meanwhile, new signing Mohamed Elneny and goalkeeper David Ospina also trained at Arsenal’s London Colney headquarters after being ruled out of the last two fixtures with a groin injury.

A number of youngsters were also selected to train with the squad, with Matt Macey, Alex Iwobi, Tafari Moore, Glen Kamara, Julio Pleguezuelo and Dan Crowley all called upon.

Sanchez had been pencilled in to return for Arsenal in their FA Cup clash against Sunderland last Sunderland after being out since 29 November, when he went off with a hamstring injury in the 1-1 draw against Norwich at Carrow Road.

But he suffered another setback, which came after he previously missed the win over Manchester City on 21 December that had initially been targeted for his comeback.

Arsenal’s match after the trip to the Britannia Stadium is the landmark clash against Chelsea, which takes place at Emirates Stadium on 24 January.