Southampton are ‘interested’ in a move for a player whose club are looking to make a sale this summer. Southampton are preparing for a return to the Premier League after a one-year absence following promotion via the Championship play-offs. Manager Russell Martin will have a good idea of what positions he wants to strengthen this summer, but the ever-changing landscape of the transfer market is always difficult to navigate. The club have already welcomed Taylor Harwood-Bellis permanently after his successful loan, with Adam Lallana also confirmed to be returning to the Saints once his Brighton…