It is stated that the 25-year-old will be moving to Selhurst Park for a fee of £6.5 million, agreeing a four-year contract with Alan Pardew’s side.
This is a surprising turn of events in the ongoing saga involving Antonio, with it expected that the English winger - formerly of Sheffield Wednesday - would sign for West Ham today.
Sky Sports claimed that the Hammers deal to bring Antonio to the Boleyn Ground hit a stalemate between the East London club and the player, and the report suggests that West Ham chiefs were not confident of securing his signing.
There were no indications that the Hammers would continue looking to sign Antonio when the deal stalled, and it appears as if Palace have jumped to the front of the queue for the Forest star.
A deal should be completed in the coming hours, making Antonio the fifth permanent signing of Palace’s summer, and the sixth arrival in total after the signings of Yohan Cabaye, Alex McCarthy, Connor Wickham, Bakary Sako and Patrick Bamford.