Nacer Chadli and Salomon Rondon have been struck down by a knee injury and hamstring complaint respectively .
Salomon Rondon have accounted for seven of Albion 's 12 goals this season .
Nacer Chadli and Salomon Rondon , who have accounted for seven of Albion 's 12 goals this season , have been struck down by a knee injury and hamstring complaint respectively .