Valencia has rapidly fallen out of favour at the Hammers under Slaven Bilic and looks set to complete his exit.
West Ham United have been on a high-profile search for a top-class striker this summer but it appears as though one forwards could be on his way out of the club, with Turkish outlet Haberler reporting that Galatasaray have agreed a deal to sign Enner Valencia.
Valencia has struggled in London since making his £12 million move from Mexican side Pachuca two years ago, and has failed to replicate the kind of form he showed in the Americas.
After scoring just five times in 37 appearances in his first season in England, he was only able to match that underwhelming tally last term as he struggled for form and fitness.
The Ecuadorian is now surely behind Andy Carroll, Diafra Sakho, and Ashley Fletcher in the pecking order under Slaven Bilic, and has been heavily linked with a move away.
West Bromwich Albion were one of the English teams speculated to be interested in signing the striker, but Valencia allegedly turned down the Baggies offer.
Now, Haberler report that a deal has been agreed for the 26-year-old to join Turkish side Galatasaray as he looks to bring his unhappy time in England to an end.
A move to Turkey could be an ideal solution for Valencia; such is the perceived prestige of signing former Premier League stars, he would be likely to command a higher wage than he would have been offered by interested English clubs.
He will also get the chance to line up alongside such attacking talent as Wesley Sneijder and Lukas Podolski, and the opportunity to play Champions League football.