According to The Sun, the 22-year-old keeper, who spent last season on loan at Norwich City, is set to complete his move to St Mary’s for an initial fee of £10m.
Despite never having made an appearance for the Premier League champions, Gunn is highly regarded at the club and when the transfer goes through, will find himself in the top ten most expensive goalkeepers in English top flight history.
The England Under-21 international played every match for the Canaries last campaign during his loan spell, racking up 51 appearances in a single season in all competitions, helping guide his side to a 14th place finish in the Championship.
Norwich fans voted Gunn, whose father also played for the Canaries for over a decade, third in their Player of the Season vote, behind star man James Maddison, who recently joined Leicester
Norwich, it’s been an absolute pleasure.. thank you to all my teammates, all the staff and especially all the fans, coming back here has always been a dream. Thank you again, a year I’ll never forget #otbc pic.twitter.com/NMWFAPEKb1— Angus Gunn (@AngusGunn01) May 20, 2018
With the imminent arrival of Gunn, it leaves the futures of current Saints goalkeepers Fraser Forster and Alex McCarthy up in the air, with one likely to depart this summer.
Forster and McCarthy split the work load throughout last campaign, but the inbound Gunn might give them the stability between the sticks that they have needed.