Isaac Success made the move to the Premier League last summer, joining Watford from Spanish side Granada for £12.5million.

However, despite his considerable price-tag, the 21-year-old has been restricted to just a handful of starts for the London club this season.

And according to the midfielder's former youth team coach Douglas Idahosa, if he does not receive assurances about his game time, he will leave.

And Premier League rivals West Ham are said to be waiting in the wings to snap up the Nigeria international.