Celtic have accepted a bid from Crystal Palace for midfielder Joe Ledley, according to Sky sources.
The Wales international's current contract runs out in the summer and he had been stalling on a new deal with the Scottish champions.
Hoops boss Neil Lennon was desperate to hang on to the fans' favourite but has reluctantly agreed to accept the reported £800,000 on offer rather than lose him for nothing at the end of the season.
Palace still have to wrap up the deal and Lennon admits they must move fast to secure Ledley.
"I'd be losing a good player, said Neil Lennon, "but he's coming to the end of his contract. The other scenario is that he runs his contract out and that wasn't something we wanted to happen, so in the circumstances you could say it is good business.
"To be fair, the contract's been there for a long, long time. It's not brinkmanship on our part. We've made Joe and his representatives an offer and it's been there for quite a while, and they've not been forthcoming in taking it.
"An offer's come in, it's been accepted and so the ball is firmly in their court now."
Lennon is believed to be interested in Huddersfield's Oliver Norwood and could bid for the midfielder as a straight replacement for Ledley.
Another regular first-teamer, Georgios Samaras, could also be on his way out of Parkhead with Turkish club Trabzonspor linked with a final-day bid.
Like Ledley, the Greece international striker is out of contract in the summer and has shown little indication of committing his future to the Scottish Premiership leaders.
"It wouldn't surprise me but there's been no contact and he's not for sale," said the manager.
The Celtic boss also revealed that the club had put a big bid in this week for a player in Turkey, but the player could not come to an agreement with his club.
"We did everything at our end the right way but the deal couldn't get done, so that was frustrating, but you get used to it. It's part of the transfer window," he said.