Southampton have completed the signing of goalkeeper Fraser Forster from Celtic on a four-year deal.

The 26-year-old, who underwent a successful medical earlier today, joins the Saints for a fee in the region of £10m.

"Fraser is a very talented player and we are delighted to be able to bring him to Southampton," manager Ronald Koeman told the club's official website. "This is another important part of our rebuilding process ahead of the start of the season.

"Fraser is the perfect fit to help complement the players we already have, and he will add a lot of quality to the squad. He is an exciting English player with a very good reputation within the game and, at 26, he will enjoy the best years of his career at Southampton."

Forster was part of England's World Cup contingent this summer, where he worked with Southampton's new goalkeeping coach Dave Watson.