Australia U23 international Caleb Watts has signed a new contract with Southampton.
The 19-year-old's current deal was expiring at the end of this season and he has put pen to paper to commit a further year.
After signing his deal, Watts told the club website: "I'm really pleased to get the deal signed and can't wait for the next stage of my career now.
"The club has a great track record of developing players and obviously I can benefit from that. So hopefully I can get into the matchday squads again and continue that tradition.
"It was exciting to get into the matchday squads and play within two or three months. It's a lot of motivation to show the manager you're good enough, you just have to show it consistently.
"I just want to pick up as much senior experience as possible, try and get into the manager's plans and see what happens."