Steve Smith Cops Sickening Blow To The Neck In Ashes Test

Steve Smith is expected to bat at Lord's on Sunday if required, having retired hurt then resumed his knock after a frightening blow to the neck that dredged up rough memories for Australia's dressing room.

Smith, who retired hurt on 80 then was trapped lbw without offering a shot on 92, was the central figure in a chaotic post-lunch session on day four of the second Ashes Test.

The former skipper was hit on the elbow, forearm and neck by express paceman Jofra Archer during a violent spell of short stuff.

The third and most brutal strike prompted the shocked crowd to fall silent as Smith slumped to the ground.

Smith was hit in the neck by a ball from express paceman Jofra Archer. Photo: Getty Images.

Smith was back on his feet soon after and keen to keep batting but left the field at the insistence of team doctor Richard Saw, who wanted to conduct a thorough concussion assessment in the rooms.

Broadcasters initially didn't show a replay of the nasty incident, such was the level of concern.

Fielders and teammate Pat Cummins rushed over to Smith after he hit the deck face first, with the scare serving as the latest reminder of Phillip Hughes' tragic death.

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Pat Cummins and England team fielders rushed over to help Smith. Photo: Getty Images.

"You never like seeing your players get hit like that," Australia coach Justin Langer said.

"An ugly incident. Thankfully Steve has come through it OK.

"There's obviously some pretty rough memories of a blow like that.

"I'm sure he'll be very sore tomorrow -- his arm and his neck -- but he was in good spirits."

David Warner and other members of Australia's squad were at the SCG in 2014, when Hughes was tragically hit on the neck in a Sheffield Shield match.

Smith was struck three times during the Innings but remains in good spirits. Photo: Getty Images.

A battered Smith didn't field on day four, having been rushed off for X-rays that confirmed his arm wasn't broken, and will undergo further concussion tests but Langer expects the star will "play the game out".

Paceman Chris Woakes was fielding at fine leg when Smith was struck but immediately grasped the seriousness of the situation.

"You get a feel from the noise more than anything. You could hear it was fleshy," Woakes said.

"When that's the case, you worry."

Smith remains key to Australia's hopes of enhancing a 1-0 series lead but the overriding sentiment in the visiting dressing room is relief.

READ MORE: Steve Smith Saves The Day With Stunning Century In First Ashes Test

Smith remains key to Australia's Ashes hopes. Photo: Getty Images.

Langer, who famously wanted to bat in a Test against South Africa in 2006 despite being hospitalised with concussion, revealed just how eager Smith was to get back out there after passing his medical tests.

"These are like my sons alright, so you're never going to put them in harm's way," Langer said.

"He was going 'mate, I just want to get out there. I can't get up on the honours board unless I'm out batting'.

"I asked him behind closed doors two or three times. I asked him in front of the group, he just kept going 'all good, all good coach. I'm ready to go'.

"What else do you do? The medicos cleared him ... all that he was worried about was (the arm injury)."

A recent rule change means that concussed players can be replaced mid-Test, subject to the match referee's approval.