Arsenal have been handed a major blow in their Premier League title charge after the club confirmed the severity of Takehiro Tomiyasu's injury.
The right-back suffered a knock in last week's Europa League last-16 exit to Sporting CP after over-extending in a challenge. He later left the Emirates Stadium on crutches before Mikel Arteta admitted the injury was "not looking good".
Now, the club have released a statement outlining the seriousness of the 24-year-old's injury. It read: "Tomi has had successful surgery in London on Tuesday and will be ruled out for the remainder of this season.