Southampton could move for Chelsea left-back Ryan Bertrand if Luke Shaw leaves the club, [football] direct news understands. The Saints are facing the possible departure of star youngster Shaw in the summer, with the talented 18-year-old attracting a great deal of interest from Manchester United, as well as Chelsea themselves.googletag.cmd.push(function() { googletag.display(“div-gpt-ad-1389116196215-0”); });A move to Stamford Bridge could pave way for an exchange deal, with Saints manager Mauricio Pochettino keen to bring in a new player to replace Shaw in his defence. We hope Luke stays at the club, he’s a great prospect, a club insider explained. “But we can’t stop bids coming in this summer and the manager has to think about replacements in that area. Bertrand is a player whose name has come up, and I wouldn’t be surprised if he moved as part of a deal if Chelsea came calling. The 24-year-old full-back has struggled for first-team football at Chelsea and is currently on loan at Aston Villa.