Arsenal midfielder Thomas Partey will miss the Europa League Round of 32 first leg against Benfica on Thursday.
The Ghanaian international has been sidelined since picking a strain to his left hamstring in Arsenal’s defeat to Aston Villa in the Premier League.
The 27-year-old has been plagued by injuries since his big-money move from Atlético Madrid.
Partey will continue to be assessed by the club’s doctors as he recovers from this latest setback.