Photo: Alexis Sanchez looks focused as Arsenal train ahead of Hammers clash

Arsenal forward Alexis Sanchez posts a photo from training as the Gunners gear up for West Ham

Alexis Sanchez appeared to be in a serious mood as the striker trained with Arsenal team-mates ahead of their clash against West Ham United on Sunday.

The Chile international only made his return to training with the FA Cup winners earlier this month after he was afforded an extended break following their Copa America triumph on home turf.

Arsenal have managed without the 26-year-old after winning pre-season tournaments in Singapore and north London before the Gunners eased to a 1-0 victory over Chelsea in the Community Shield last Sunday.

And Sanchez, who moved to Arsenal from Barcelona in a £35m deal last summer, was the picture of determination as he dodged some obstacles during a training session at London Colney on Thursday.

Sanchez wrote on his Instagram page: “training to today”

The Chilean forward scored in Arsenal’s 4-0 victory over Aston Villa in the FA Cup final at Wembley last May.

MORE: Read the latest Arsenal player tweets

Sanchez was named in the PFA team of the year after he scored 16 goals in his first Premier League season.

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