"As part of the Cricket Australia concussion protocol, repeat concussion testing of Steve Smith was also performed this morning and demonstrated some deterioration from his testing which is consistent with the emergence of the symptoms he was reporting. On that basis Steve has been withdrawn from the match by team doctor Richard Saw and the Australia team will lodge an application for a concussion substitute with the ICC match referee in line with the ICC protocol", said a spokesperson from Cricket Australia.

It is also very unlikely that Smith will be fit for the third Test at Headingley starting on August 22, as informed by CA. "In terms of Steve's availability for the third Test..the short turnaround to the next Test is not in his favour. Steve's fitness will be assessed on an ongoing basis".

Smith was struck on the neck immediately below his left ear while batting on 80 but he returned at the fall of the next wicket. While did strike three boundaries just after coming back, a misjudged delivery from Chris Woakes had him leg before for 92 after which he did not take the field for England's second innings.

Middle-order batsman Labuschagne, who also bowls useful leg-spin, was on as Smith's replacement before being allowed to bat, bowl and field for the remainder of the Test. The right-hander made his debut against Pakistan at Dubai last October and has played 5 Tests so far