Former Celtic assistant manager John Collins has called on the Scottish champions to keep midfielder Olivier Ntcham.

Southampton are said to be keen on the Frenchman but Collins feels that the 24-year-old has yet to reach his potential and the club would regret offloading him if he were to leave Parkhead this summer:

“There’s no doubt that whoever gets Olivier Ntcham is getting a top, top player. If he does leave Celtic then it’s not good news for them but whoever gets him will discover just how good he is.”

Manager Neil Lennon has a big decision to make. If Southampton do offer Fraser Forster in part-exchange for Ntcham, the Irishman will be very tempted to take the deal.

Forster has been a key player for the Hoops since his arrival on loan and the club will likely do all they can in order to retain the 32-year-old’s services.

In contrast, Ntcham has not always been a regular first-team starter during his time at the club, although Lennon has selected the former France Under 21 international consistently this season.

It will probably come down to who the Celtic manager regards as the most important player.