Alexis Sanchez leaves the pitch at Carrow Road.

Arsenal’s constant battle with injuries could be down to something as fundamental as their tactical approach to matches, one leading physiotherapist has claimed.

The Gunners are currently without 10 first-team players after a trio of stars were injured during Sunday’s 1-1 draw at Norwich on Sunday.

Key man Alexis Sanchez was forced off with a hamstring problem while manager Arsene Wenger confirmed Santi Cazorla finished the game “playing on one leg” and Laurent Koscielny had to be replaced.

PA Sport understand all three are now doubtful for Saturday’s visit of Sunderland as well as the crucial Champions League clash with Olympiakos in Greece four days later.

Sunday’s injuries add to the seemingly ever-increasing number of casualties at the Emirates and chartered physio Sammy Margo believes it could be Arsenal’s tactics that are leading to so many players being absent.

“Tactically, there are certain teams that play in a very specific way,” she said.

“It could be that tactically things are just leading to injuries, you can’t blame it on refereeing. It is normally down to training and the tactical approach to the game.

“It may be that they are encouraged to behave in a certain way in certain situations that makes them more prone to injuries during the game.”

Margo, who became the first female physio at an English league club during a stint at Barnet, reckons the issues at Arsenal are also systematic of a league where rest and recuperation are almost impossible.

“At this time of year we are always saying British football needs a break because they have been going strong,” she said.

“Players have to play at their maximum and go all-out. Particularly in Sanchez’s position, the career is quite limited to be at the top so they are pushing their bodies to the boundaries.

“But something isn’t quite right at the moment, it is very difficult to pinpoint specifically what it is – somehow they need a rest.

“Football needs a break.”