The day began with training at Rush Green
Michail Antonio gets ready for the European opener
Mark Noble on the training pitches
Alphonse Areola has played in Europe before for Paris St Germain, Real Madrid and Villarreal
Declan Rice and Ryan Fredericks arrive at the airport
Nikola Vlašić is returning to his homeland for Thursday's game
The manager is looking forward to the test in Europe
Vladimír Coufal heads to the aeroplane
Mark Noble was all smiles at Stansted
Aaron Cresswell will hope for his fourth appearance in Europe with the Hammers
Alex Král and Tomáš Souček both played in this competition for Slavia Prague
Pablo Fotnals gives the thumbs up
Could Michail Antonio add to his goal tally for the season at the Stadion Maksimir?
West Ham United put the finishing touches on their preparations for their UEFA Europa League Group H opener at Dinamo Zagreb, training at Rush Green on Wednesday morning before departing for the Croatian capital.
A mid-afternoon flight from Stansted took them over to Zagreb, where manager David Moyes and captain Mark Noble took on pre-match press conference duties.
Our cameras were on hand to capture the day and you can see the best of the images in our gallery above.