West Ham striker Diafra Sakho refuses to travel to Austria for the club's pre-season training camp

West Ham striker Diafra Sakho refuses to travel to Austria for the club's pre-season training camp
West Ham will sell the 26-year-old but as talks over a move for Carlos Bacca have become protracted the club are reluctant to let Sakho and Enner Valencia leave without a having a replacement lined-up.