Brentford goalkeeper Paul Smith has completed his transfer to Southampton in a £500,000 deal.
Smith has had spells on trial with Spurs and Portsmouth this term
The keeper, who also interested Spurs and Portsmouth, will operate as number two to Finnish keeper Antti Niemi.
Smith, 24, said: "This was really where I wanted to be. The sheer size of the club is impressive from the stadium to the first-class training ground.
"I was very impressed by what
Southampton had to offer and by their goalkeeping coach David Coles.
"He had a lot of fresh and different ideas and he is a really nice man too.
"He worked us hard but I have no problem with that because I am here to learn and improve.
"There were a few teams watching me but it was not too unsettling even though I knew I wanted to play in the Premiership."
Smith joined Brentford in August 2000 from Carshalton and became the first choice goalkeeper midway through the 2001/02 season.
He has had spells training with Southampton, Tottenham and Portsmouth this season.