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Viktor Gyokeres will undergo scans this week after he was forced off at half-time of Arsenal’s win over Burnley last weekend.

Gyokeres is suffering with a muscular issue and has not travelled with the Arsenal squad for their Champions League clash against Slavia Prague on Tuesday.

Mikel Arteta has admitted he is “concerned” about the striker , who has scored six goals since joining Arsenal from Sporting in the summer.

Gyokeres has been ruled out of Tuesday’s game in Prague and will have more tests this week to learn the full extent of his injury .

“He is defi

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