Barnsley chairman Gordon Shepherd says they made an offer to Crewe Alexandra's out-of-contract defender Steve Foster.
The Tykes have offered Foster a two-year deal to join the Oakwell club, who earned promotion to The Championship through the play-offs last month.
Railwaymen boss Dario Gradi conceded that he was unlikely to keep Foster at Gresty Road next season and he looks set for a switch to the South Yorkshire outfit.
Shepherd confirmed the offer that has been made to Foster and an unnamed player for next season.
"We have offered Steve Foster a two-year deal and he is thinking it over," Shepherd told the Barnsley Chronicle.
"I had a meeting with him and his agent on Thursday and those talks were very amicable. We are hoping for a positive outcome.
"We have made an offer to another player as well, although it would be unfair to name him at the moment, but he would be another good signing for the club."
With Foster likely to arrive in the near future at Barnsley, Tykes defender Neil Austin has been linked with a move to Championship rivals Southampton.
Reports on the South Coast suggest The Saints are eyeing Austin as a potential summer target.