Nigel Clough says Burton Albion will know more on the extent of Liam Boyce's knee injury on Monday following the Brewers' 1-0 friendly defeat at Shrewsbury Town this afternoon.
The Brewers ' record signing was carried off on a stretcher late in the first half at New Meadow after appearing to twist innocuously in midfield as he challenged for possession.
Physio Nick Fenton rushed on to treat the Northern Ireland international and a stretcher was called for, with Boyce taken off and replaced by Joe Sbarra.
Fellow forward Marvin Sordell had previously left the field after being dismissed for a poor challenge on Abu Ogogo, who had himself caught Sordell late earlier in the game.
It seems almost certain that Boyce will miss Burton's Championship opener at home to Cardiff City next weekend - he is set for a scan on Monday.
Until then, though, Clough says they will know no more about the state of the striker's injury.
"No - we'll know a bit more on Monday after a scan," he said when asked if there was any update on Boyce.
"We are not sure yet.
"It was innocuous. He just put his foot down and just felt something in his knee.
"There's no point in even speculating until we know a bit more on Monday."
Sordell was the Brewers' other first-half departure against the Shrews after picking up that red card. The ex-Coventry City man will be unable to play in Tuesday's friendly against Leicester City because of that dismissal, but he will be available for the Cardiff game.
Clough had no qualms with referee Rob Lewis' decision to send Sordell off for his poor foul on Ogogo - and he was ready to bring the Albion striker off immediately at the time.
But he did question why a previous challenge by Ogogo on Sordell, which several Brewers players took issue with, went unpunished.
"Yeah, we said as soon as the tackle was made, we'd bring him off," added the Burton boss.
"We were going to bring him off anyway because he was injured from the first tackle.
"And that's what he was frightened of, he said, that it was going to happen again.
"Having been injured in the first tackle with the same player, when he saw that one looming - there's no excuse for it, it is a sending off in a game - but we're not in the season, we're in pre-season.
"So if that's a sending off, our only question for the referee was, why didn't he give a yellow card to the other lad?
"Why do you enforce that one and not enforce the one before? We don't know which rules are going to be enforced and which aren't - that's all."