Arsenal will be without Viktor Gyokeres for Tuesday's Champions League game at Slavia Prague after the Swedish striker picked up a muscle injury at the weekend, manager Mikel Arteta said on Monday, Reuters reported.

Gyokeres scored the opener in Arsenal's 2-0 win at Burnley on Saturday, his fourth Premier League goal of the season, but did not emerge for the second half, and Arteta confirmed he would not feature in the match in Prague.

"He's definitely not available," Arteta told reporters, according to Reuters.

"He hasn't trained today, and we need to do some more tests and scans in the next few days to understand the extent of the injury, but for this game he is not available."