Enner Valencia is close to completing his move from West Ham to Mexican side Tigres, according to Sky sources.
Sky Sports News HQ understands the clubs have agreed a fee between £6m and £7m for the Ecuador forward.
The 27-year-old joined West Ham in 2014 but he has only managed to score eight Premier League goals in 54 appearances since then.
Valencia spent last season on loan with Everton, scoring a further three goals in 21 Premier League outings.
He arrived in England after a prolific run of scoring in Mexico's top division - Liga MX - with Pachuca for whom he hit the target 18 times in 23 games.
Valencia had also impressed scouts with his performances in the run-up to, and during, the 2014 World Cup in Brazil, where he scored three goals for his country.