Everton boss Koeman questioned the work rate of the attacking duo - and with one already gone, could the other follow?
Turkish side Fenerbache could launch a double raid on Sunderland and West Ham United which could see the clubs offload two flops.
If only David Moyes possessed an in-form winger, creating and scoring in equal measure. Unfortunately, Jeremain Lens is unlikely to return any time soon.
Sunderland midfielder scored against Manchester United in the Europa League for Fenerbache, where he is currently on loan.
The Liverpool defender is reportedly close to completing a move to Fenerbache.
Fenerbache and Galatasary have been linked with Arsenal’s Joel Campbell.
Liverpool’s Lazar Markovic has joined Fenerbache on loan.
Black Cats hoping for breakthrough in deal for Senegalese striker as they close on deals for Yann M'Vila and Leroy Fer.
West Ham United are reportedly weighing up a £12 million move for exciting Fenerbache striker Moussa Sow, but what would he bring to the Hammers?
Manager Arsene Wenger has seen the pressure rise again after the loss of another senior player to injury.