Crystal Palace reportedly make contact with West Ham United regarding the possible signing of midfielder Cheikhou Kouyate.
Kouyate has enjoyed a successful four-year spell with the Hammers, with 15 goals being scored in 147 appearances in all competitions.
However, it has been claimed that West Ham are prepared to sell the 28-year-old this summer, and Porto are allegedly keen to sign the Senegal midfielder.
According to Sky Sports News, Palace have also made their move for a player who could cost somewhere in the region of £10m.
The Eagles are yet to sign any new outfield players during the summer window, but manager Roy Hodgson requires a replacement for Yohan Cabaye, who has left on a free transfer.
Porto show interest in Kouyate? >