Smith, who averages nearly 60 in 16 Tests in England, is gearing up for the five-match series with Sussex. He followed Labuschagne’s overnight 68 not out against Glamorgan.
Smith said this month that winning a series in England was at the top of his “bucket list”, admitting it could be his last chance.
“Potentially. I mean, I turn 34 in just under a month. I’m not sure I’ll be back. We’ll see,” he said.
The one England player he will not face is fast bowler Jofra Archer, who has been ruled out of the Ashes with a stress fracture in his right elbow.