Batshuayi and his representatives had turned their attentions to Palace, after failing in an attempt to persuade the Blues to allow him to join Tottenham.
Chelsea had no interest in helping Spurs find temporary cover for the injured Harry Kane, but were prepared to consider permanent offers matching their £35million valuation of the Belgian, in the final hours of the window.
Spurs, however, were not prepared to make a significant permanent investment in Batshuayi, giving Palace a late opportunity to secure the Belgian’s services.
Palace are long-time admirers of Batshuayi, as they had a £31.6m bid for the striker accepted by Marseille in July 2016, only for personal terms to scupper any chance of a deal, before he signed for Chelsea.