Arsene Wenger has received a triple fitness boost ahead of Sunday's clash at Everton.
The Gunners make the trip to Merseyside following last weekend's dismal defeat to Watford, although they did win in Belgrade on Thursday.
And they will be boosted by the return of Alexis Sanchez, Aaron Ramsey and Laurent Koscielny, reports Football.London.
Sanchez and Ramsey missed last weekend's shock defeat at Watford after being left out of the squad with Arsene Wenger citing muscle fatigue following their exertions on international duty with Chile and Wales, respectively.
Koscielny started at Vicarage Road, but was forced off with an apparent achilles problem.
Wenger confirmed: "Alexis, Koscielny and Ramsey will be alright."
Meanwhile, having only returned from a three week absence, Danny Welbeck was another player who was substituted against Watford with injury, and the England international could be sidelined until after the next international break.
"Welbeck is out. He has a groin problem, I think it will be two to three weeks before he is back. He will not be back before the international break.
"Mustafi will not be back before the break, and Ospina as well. Ospina is not very bad, he has a grade one [groin problem] so it’s just a couple of weeks. Mustafi is a bit worse than Ospina.
"Calum Chambers as well will be back after the break, and everybody else is alright."
The Gunners travel to Goodison Park on Sunday knowing anything but victory will spell the end of their title ambitions.
Despite a morale-boosting win at Red Star Belgrade during the week, it is in the league where Arsenal are still searching for their first away win.