Bukayo Saka, who was taken off midway through Arsenal's 2-2 draw with Crystal Palace on Monday, has been given a devastating injury setback.
The 20-year-old was replaced at halftime by Albert Sambi Lokonga after taking a brutal kick to the back of the leg from James McArthur in the first half, which drew only a yellow card from Mike Dean.
Yes, this should have been a red card for McArthur after aiming at Saka's calf and injuring him in the process. pic.twitter.com/VMHC3LFlwF
Mikel Arteta was been unable to provide an update on Saka's injuries after the match, but he slammed the decision not to show McArthur a red card for his challenge.
Speaking to Sky Sports News, Arteta said: "He was very sore in the area. When I look at the action I cannot understand how the player [McArthur] can continue to play."