Diafra Sakho celebrates scoring for West Ham
The Eagles have strengthened their goalkeeping, defensive and wide options by signing Steve Mandanda, James Tomkins and Andros Townsend, but manager Alan Pardew still wants a new striker.
Connor Wickham struggled to live up to his price tag last season, whilst Fraizer Campbell's days look numbered and Dwight Gayle has been sold to Newcastle United, meaning a new goalscorer is a huge need for Palace.
Now, whilst The Mirror claim that a £31m offer to sign Liverpool striker Christian Benteke remains on the table, Palace are looking at alternatives after their deal for the Belgian stalled - and West Ham's Diafra Sakho appears to have become a target.
Sakho, 26, found the net seven times last season, which was something of a disappointment having scored 12 goals in his first season with West Ham, and he now looks set to leave the club this summer.
The Senegal international is attempting to force a move away from the Olympic Stadium having refused to travel out to Austria with the rest of the West Ham squad, and Crystal Palace have now joined three Premier League rivals in trying to sign Sakho.
It's claimed that Sunderland, Swansea City and West Bromwich Albion are all keen on Sakho, but Palace have now entered the race to sign the striker valued at around £15m.
Palace have already swooped to sign one West Ham player this summer in defender Tomkins, and could make it a double raid on their London rivals if they can secure a deal for Sakho - but that won't be easy right now, as West Ham will only sell the former Metz star if they find a replacement first.