Wigan Athletic boss Chris Hutchings admits Emile Heskey is "touch and go" over whether he'll be fit for England's Euro2008 qualifiers next month.
Hutchings said: "I suppose it is touch and go for those England games now. It all depends on the speed of his recovery.
"Realistically, we are probably looking at Emile missing between four and six weeks' football.
"If he is back in action any sooner than that it would be a huge bonus."
Describing the incident early in Saturday's 1-1 draw with Fulham at the JJB Stadium, Hutchings added: "It was all very innocuous.
"Emile just slipped on the turf and rolled his ankle, but these things happen sometimes.
"At first we feared it was ligament damage, but the scan revealed a slight hairline fracture of the metatarsal.
"It's very unfortunate for Emile after the week he had with England, and especially as he has started the season so brightly."