Kieron Dyer was forced off the pitch after only seven minutes of the season for QPR against Bolton but x-rays later showed he did not suffer a broken foot.
The 32-year-old midfielder was making his first Premier League start for Neil Warnock's side after signing on a one-year deal this summer from West Ham.
He fell awkwardly after going into a tackle and was substituted as QPR lost 4-0 on their top-flight return.
But Warnock later allayed fears that Dyer had suffered serious injury.
"We thought he had broken his metatarsal, but the x-rays showed no break, although he got a nasty stud on the top of his foot," he said.
"Hopefully it is not too bad and he might be back in a few days. We'll just have to wait and see."
Dyer has been plagued by injuries throughout his career, managing only 35 appearances during his four seasons with the Hammers after sustaining a broken leg and also suffering with a hamstring problem.
Injuries also affected his time at Newcastle, when hamstring trouble kept him sidelined for the first part of the 2005-06 season.
Meanwhile, QPR manager Warnock added that he hoped proposed new investment at the club could lead to new signings before the close of the summer transfer window.
Malaysian entrepreneur Tony Fernandes has been holding talks with QPR's key shareholder, Bernie Ecclestone, and his business partner Flavio Briatore about acquiring a majority stake in the club.
Speaking after his side's 4-0 home defeat, Warnock said: "We've talked with the new people and if it goes through they know what I'm looking for. We've got two weeks to get in the players we want."