Stoke City boss Tony Pulis is concerned losing defender Robert Huth at the end of the season.
The 27-year-old has just over 12 months left on his current contract and talks stalled earlier this year.
Pulis said: "We are desperate to keep Robert at the club and hopefully we can reach an agreement with him soon.
"He's been an integral part of what we've done here and it's always important to look after the players."