Arsenal defender Gabriel Paulista if set for two to three weeks spell on the sidelines with a hamstring injury, manager Arsene Wenger has confirmed.

The Brazilian centre-back picked up the injury during the first half of his side’s 2-1 win at Queens Park Rangers (QPR) on Wednesday night.

Gabriel will therefore miss Monday night’s FA Cup sixth round game at Manchester United.

“Gabriel has a little hamstring injury and will be out for two to three weeks. He will not be available for the weekend or West Ham or Monaco,” Wenger said in a news conference at the club’s Conley facility on Friday.

Wenger added that “everybody else will be available” except Nacho Monreal who will have a late fitness test.

The better news for Arsenal fans on the goalkeeping front pertains to the return of Wojciech Szczesny, who is in contention for the game at Old Trafford.

“He (Szczesny) has a test today, Wenger said. “If he gets through that test he will play on Monday night.

“Wojciech is used to playing in big games and he’ll take that as a big challenge to show his quality. He works very hard in training.”

The last (Premier League) meeting between both sides in November ended 2-1 in favour of the Red Devils thanks to Kieran Gibbs’ own-goal and Wayne Rooney’s second-half strike.