Queens Park Rangers midfielder Kieron Dyer will be out for "a couple more weeks at least", manager Neil Warnock has confirmed.
The former England international was withdrawn during Rangers' season opener against Bolton last weekend.
"It's such a shame for him," Warnock told the club's website.
"It will be a couple more weeks at least, but I'm hoping by then we'll have a few more players in to compliment his talents."
Dyer signed for the London club this summer on a free transfer from West Ham United.