Arsenal's Jack Wilshere is again battling injury ahead of the 2016/17 Premier League season.

The 24-year-old midfielder missed almost the entire campaign with a hairline crack in his leg but the fresh problem is only minor according to manager Arsene Wenger.

The Gunners boss has revealed that Wilshere has a patella (kneecap) issue but should be available for Friday's friendly with Viking FK in Stavanger, Norway.

"Jack has a slight problem with his knee," said the Frenchman.

"We think it should not be very long.

"He should come back quickly, maybe next week.

"It's a slight patella problem but I think he should be with us on tour on Thursday."