Parzyszek was close to joining Portugese side Benfica earlier in the transfer window, only for the move to fall through.

And now the Hammers are ready to swoop for the 20-year-old, who has scored 23 goals in 42 appearances for De Graafschap.

Sam Allardyce recently added Italian internationals Antonio Nocerino and Marco Borriello on loan from AC Milan and Roma respectively, but saw a bid for Leeds striker Ross McCormack turned down.

Leeds boss Brian McDermott has been assured by Allardyce that the Hammers will not be making a renewed bid for McCormack as they turn their attentions to other targets.