Australian batsman Steven Smith has been officially ruled out of the Third Ashes Test against England starting on Thursday at Headingley due to concussion.
Smith was forced out of the Second Test on day five after sustaining delayed onset concussion from a Jofra Archer bouncer late on day four.
The in-form batsman, who has scored 378 runs across three innings at an average of 124 this Ashes, was unable to train on Tuesday.
The short turnaround between the Second and Third Tests means Smith hasn’t been able to pass the required tests to prove he’s sufficiently recovered from the concussion.
“It was pretty simple really, when we followed the protocols, he was probably a couple of days off being fit to be selected,” Langer said.
“There’s been a lot of work go into this concussion substitute, the concussion policy, over many years.
“The very fact we’ve got one in international cricket goes to show how much has gone into it.
“At the end of the day it was really a no brainer. He felt a bit better yesterday, but he is not going to have time enough to tick off everything he needs to do to be ready to play.
“He obviously, like all the players, wants to play, he loves batting, but he understands as well that he’s not 100 per cent yet and with only a couple of days between Test matches that’s what makes it so difficult.”
Australia are hopeful Smith will return in their three-day tour match against Derbyshire commencing on 29 August.
The Fourth Ashes Test starts at Old Trafford on 4 September.