Celtic have rejected a second bid from Southampton for their prized striker Gary Hooper.
The 23-year-old was signed by Saints boss Nigel Adkins when he was manager of Scunthorpe, before he was sold to the Scottish Premier League club.
Adkins is keen to inject some extra firepower to his attack, but their latest bid of around £4million, which would be a good return on a player the Hoops paid £2million for did not impress boss Neil Lennon.
"Southampton's valuation of the player and our valuation are some way off each other," he told the Daily Record.
"I've no idea if they'll come back in for Gary a third time, but they'll get the same answer if they do. He's not for sale."
Lennon is determined to hold onto the former non-league striker who began his career at Grays and is proud of the way he has developed at Celtic Park.
"Goalscorers are priceless. If you look at Gary's record in his time here, he's got a goal in every one-and-a-half games," he added.
"He was one of the leading scorers in the Championship. When I went to see him he stood out like a sore thumb.
"I think it's been good business and he's enjoying life here and enjoying his football."