US Open semi-finalist Jack Draper has been left out of Great Britain's opening tie at the Davis Cup Finals group stage against Finland on Wednesday.
Draper, 22, only arrived in Manchester on Tuesday lunchtime and, after practising under the watchful eye of British captain Leon Smith later that day, has been given more chance to recover from his exploits in New York.
Draper had strapping applied to his right thigh before hitting with British number 10 Charles Broom for about an hour at the Manchester Regional Tennis Centre.
Billy Harris, who is the nation's highest-ranked player in Draper's absence, will make his Davis Cup debut aged 29.
Dan Evans also plays in the singles before teaming up with Neal Skupski in the potentially-deciding doubles.
Speaking before Draper's practice, Smith said: "I have to select the team to do what is best, not just for Wednesday, but also we have really important matches at the weekend.
"We just have to weigh up risk versus reward a little bit.
"We have four guys here who are more than capable of going out tomorrow if that's required and doing a really good job."
British men's number one Draper produced the best performance of his career by reaching the last four in New York.
His run came to an end when he lost to world number one Jannik Sinner, who went on to win the title, in the semi-finals on Friday.
Draper was sick on court during the match, afterwards putting that down to the psychological stress of the occasion.
"It's a question of figuring out where he is at with his energy; how much tennis he can play over the course of the week," Smith said on Tuesday.
"But if he's good to go, he's good to go. If he's not I've got every faith in those sitting beside me now."
The British team, without Andy Murray for the first time since his recent retirement, has a different feel for the Finals group stage event.
Evans and Skupski, who memorably teamed up to secure a "bonkers" doubles victory which put Britain through to the eight-team knockout stage in Manchester last year, remain in the squad alongside Draper.
Harris - a late bloomer who has just moved to a career-high 101st in the world - and 28-year-old Wimbledon doubles champion Henry Patten are involved for the first time.
British number two Cameron Norrie is missing through the arm injury which ruled him out of the US Open.
Smith's squad face Finland, Argentina and Canada in the round-robin event at the AO Arena.
The top two teams progress to the eight-nation finals which will be held in Malaga between 19-24 November.