Arsenal are set to be without midfielder Lucas Torreria for some time after he suffered a fractured ankle in the midweek win over Portsmouth.
The 24-year-old was stretchered from the pitch during the 2-0 FA Cup win over the south coast club on Monday evening, a win that set up a quarter-final meeting with Sheffield United in a couple of weeks.
Arsenal confirmed ahead of their Premier League game against West Ham The Gunners confirmed they were "awaiting further specialist reviews which will determine [Torreira's] recovery plan."
There has not been a timescale put on the midfielder's recovery who may not play another game this season.
Torreira left Fratton Park in a protective boot and using crutches in a worrying sight for Arsenal fans.
The midfielder was in attendance for Arsenal's 1-0 win over West Ham at the Emirates Stadium, but was again spotted on crutches as he made his way to the players' lounge at full-time of the game.
Torreira has become a key figure for Arsenal under Mikel Arteta, playing 24 times in the Premier League this season, although he was a substitute in the last two Premier League games under the Spaniard.
He has played 83 times for Arsenal since moving from Serie A side Sampdoria in the summer of 2018, scoring four goals and providing six assists.
