Any supporters who had tickets for the original date are able to use those, or if they are unable to make that date, should return their tickets by Tuesday 23rd April.
The match will make it a busy week for the Hammers, with Sunderland visiting the Boleyn ground a few days earlier, and a long trek up to Newcastle on the cards on the Saturday afterwards.
Earlier in the season, the two sides fought out a 1-1 draw at Upton Park, but last season it was a different story, with the Gunners running away with all 6 points, with a 3-0 thrashing at Highbury.