All change for Bolton
They sit rock bottom of the Championship and on the face of it the Hammers should cruise into the next round of the competition.
Life of course is not like that and the Irons made relatively hard work of overcoming Cheltenham in the last round of the competition.
It will be interesting to see what sort of team Slaven Bilic puts out for a game which is a perfect opportunity for the Hammers to go unbeaten in three games.
Sam Byram is likely to be drafted in at right back assuming he has overcome a knock in training and there are likely to be returns for Adroan, Ogbonna , Masuaku and Noble with Sakho and Ayew likely to form the strike force.
Arnautovic too is likely to get a run out after arriving on as a sub in the match against West Brom at the Hawthorns yesterday.
Both Josh Cullen and Reece Burke will play no part for Wanderers under the loan deal struck by the two clubs.