Australia will decide next week whether to keep Marcus Stoinis in their World Cup squad, with the allrounder ruled out of a second-straight game due to a side strain.
Stoinis, yet to return to bowling, was not considered for selection for Saturday's clash with Sri Lanka at The Oval.
Australia are yet to decide the make up of their final XI, but it likely means Usman Khawaja and Shaun Marsh will both play with a decision to be made on whether to recall legspinner Adam Zampa.
Stoinis hurt himself bowling his first spell in Sunday's loss to India.
He initially thought it was back soreness and twice went off the field before sending down two more spells.
The West Australian is able to bat and field at training problem-free, but his value to the side is as an allrounder.
Mitch Marsh flew to England ahead of his Australia A teammates and trained with the main squad on Friday as cover.
He however can't play unless Stoinis is ruled out for the tournament and can be officially replaced in the squad.
"Having four days between this game and the next one, that will be the time to really test him out and assess him," captain Aaron Finch said.
"I think over the next five or six days, there will be a call made on that just based on what he can and can't do.
"We've seen him batting and running no problem - he just hasn't bowled yet. We're waiting for the injury to settle down a bit more.
"There is a confidence Mitch will come in and do well if selected, if Stoin doesn't recover properly."
The Aussies have no other injury concerns, with David Warner in no doubt for Saturday's match.
He spent time off the field after his century against Pakistan, but Finch said he had no issues recovering from his time in the middle.
"It's not concerning at all," Finch said.
"He goes off to get his elbow taped a fair bit because, when he throws, it becomes a bit loose.
"Apart from that, there are no issues whatsoever for him."