Arsenal manager Mikel Arteta is hopeful Ben White, Bukayo Saka and Takehiro Tomiyasu will be fit for next weekend's clash with Leeds United.
White was a late withdrawal for Sunday's win over West Ham United due to a tight hamstring.
Saka and Tomiyasu were both withdrawn during the second-half of the 2-1 victory at London Stadium.
"Ben got injured against Manchester United," Arteta said of White. "He felt a muscular problem and we checked him. We're going to have to assess him in the next few days.
"Bukayo was fine. It was really fatigue and he's been through a little injury."
On Tomiyasu, Arteta said: "Tomiyasu was just having been out for so long, he could not continue. No (I'm not concerned)"