Fraser Forster has impressed this season since returning from a long-term knee injury in January. The England goalie also made a comeback on the international scene.
St Mary's manager Ronald Koeman admits that he doesn't want to lose Forster this summer.
When asked about a possible contract extension for Forster, Koeman replied, "That's a possibility, yes."
Koeman also told reporters, "We will try to hold onto everyone of course.
"But we know our situation and we know we can't win against the big teams with a lot of money.
"That's a good thing that our players have ambition, everybody wants to play at the highest level.
"But we will do everything we can to keep the players in."