This season, the 19-year-old midfielder has started every game for the Blues in the Championship and has already been called up to the Wales side.
The possibility of playing in the Premier League is undoubtedly appealing, and West Ham may be able to take advantage of Birmingham City’s current relegation to League One.
But according to Nixon, Leicester City and Atalanta are also big fans of the midfield player, so they are not the only team interested in him.
Although the Blues have the option to extend the contract by one year, the 19-year-old just has one year left on his contract.