Southampton boss Russell Martin says midfielder Will Smallbone's injury is "worse" than expected.
The 23-year-old - who spent last season on loan with Stoke City - injured his ankle making a tackle during their 4-4 draw with Norwich.
"His injury is a bit worse than we would have liked," Martin told the BBC Radio Solent Fans Forum on Tuesday.
"I also don't think it is going to be anything too long-term, fingers crossed.
"But we don't really know at the moment to be honest. I don't envision him being ready for the weekend unfortunately.