Aston Villa manager Paul Lambert has criticised Southampton boss Ronald Koeman over his public chase of defender Ron Vlaar
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Southampton have announced the signing of Chelsea left-back Ryan Bertrand on a season-long loan.
Press Association Sport understands the south-coast club have the option to buy Bertrand outright next summer.
Bertrand has been with the Blues since 2006 but has found action hard to come by, spending last season on loan at Aston Villa.