Southampton manager Ronald Koeman has set a final 10-day deadline for Manchester United target Nathaniel Clyne to decide on his future as the in-demand right back stalls over a new contract.

Clyne has been one of Southampton’s star performers in an excellent season at St Mary’s and his form has earned England recognition as well as interest from United and Chelsea.

And while Koeman says the 24-year-old is happy on the south coast, he could look to move him on with next season the last under his contract contract.

Nathaniel Clyne has been given a 10-day deadline to decide whether or not to leave Southampton

Saints manager Ronald Koeman has imposed the deadline amid interest from Manchester United and Chelsea

Clyne receives the ball from former Saints manager Mauricio Pochettino during Saturday's 2-2 draw

‘We’re still speaking with Clyney and his agent, but of course we have to know in 10 days,’ Koeman said. ‘The club is doing an offer the maximum what we can do and then we expect the player’s answer.

‘I’ve spoken to Clyney, he’s very happy and of course there is some interest but nobody has really bid for the player. All the players are happy with how the team is doing.

‘But it’s football, you never know. In football if you go in your last season of contract, we don’t like that.’

Asked why there has been a delay with Clyne - who has already missed a Koeman-imposed deadline - signing a new deal, the Dutch boss said: 'Ask him, ask his agent, I don't know.'

Clyne has enjoyed an excellent season, leading to an England call-up and interest from leading clubs

Clyne has just one season left on his existing contract and could move away in the summer

Clyne in action for England in their November friendly with Scotland in Glasgow

Koeman also accepts Morgan Schneiderlin, another player linked with a move away, may have played his last game for the club after a knee ligament problem ruled him out for the rest of the season.

The French midfielder has been linked with Arsenal and Tottenham, and has previously expressed his desire to test himself in the Champions League.

‘Morgan will be out until the end of the season,’ Koeman said. ‘He has [injured] ligaments, left knee and he will be out for four or five weeks, so that means until the end of the season.

‘I don’t know [if he’s played his last game], or about interest or about bids. We like to keep everybody but we know sometimes it’s difficult. There aren't any serious bids for the player. He is happy but it’s up to the player.’