The influential Smith retired hurt in the first innings of the second match at Lord's having been struck on the neck by a bouncer from paceman Jofra Archer, only to return later that day.
It was Ben Stokes who told Australia after the eventful draw at Lord's to prepare for more bouncers from Archer when battle resumes in a third Specsavers Test England can not lose if they are to stay in the Ashes hunt.
Warner, who scored his first half century of the series before falling to Archer for 61, was full of praise for the 24-year-old, comparing him to Dale Steyn, South Africa's all-time leading wicket taker.
England fast bowler Jofra Archer has the "X-factor" that unsettles opposition batting lineups, said former Australia captain Steve Waugh who believes the evenly-balanced Ashes series would be decided by a few key moments. Later, he failed the second concussion test and eventually ruled out from the third test which is scheduled to begin from August 22.
Smith's antics with the bat in the second Test match had sent the Twitterverse into a tizzy as many cricket fans were seen voicing their opinion of how the batsman was leaving the ball outside the off-stump.
Langer, though, wants a dispassionate display.
Thankfully, Australia's number four was able to walk off the pitch although he was subsequently withdrawn from the game on the final day with concussion.
"We know what our plans are to beat England", said Langer. That's not winning Test matches, trust me.
"I'm sure the bouncer will still be part of every bowler's armoury, if it helps us get batsmen out then we'll use it". You can get caught up in the atmosphere, you can get caught up in the contest.
"It's not unlike England losing James Anderson, he's arguably their best bowler", said Langer.
"You've got to play on skill, not emotion", Langer said. The hosts have gone with the same 12-man squad for the Test, head coach Trevor Bayliss conceded that they might reconsider their batting line-up.
Roy, however, has mainly been a middle-order batsman in first-class cricket with Surrey.
"So, I think it'll become mandatory, it is becoming mandatory next year with CA, so I may as well get used to it now and then start putting them on". It won't be very wrong to say that the right-hander has been the difference between Australia and England thus far.
England all-rounder Ben Stokes has already made it clear that Archer would be unleashing more fiery bowling at Headingley, making a potentially risky environment for a player diagnosed with concussion just four days before the start of the game.