
Viktor Gyokeres sparked concerns last weekend when he was unable to come out for the second half of the Gunners' 2-0 win away to Burnley.
The Arsenal striker had opened the scoring in the 14th minute but was replaced by Mikel Merino at the break, with the Spaniard continuing to deputise up front for Tuesday night's 3-0 win away to Slavia Prague in the Champions League.