west ham will have ecuador injury for saturday 's barclays premier league game against stoke .
defender james tomkins has undergone shoulder surgery and hopes to be in contention again before the end of the season .
west ham 's enner valencia takes on hull 's curtis davies in a premier league clash back in september .
striker andy carroll -lrb- knee -rrb- remains sidelined , along with canada defender doneil henry -lrb- hamstring -rrb- .