Hurry to make sure of your place for when the Yorkshire side head to east London for a 3pm kick-off on Saturday 30 September.
David Moyes' men will be looking for more home success, following the thrilling 3-1 victory over Chelsea which opened our campaign at London Stadium.
The Blades, who were promoted from the Championship last term, were beaten 3-0 by the Hammers on their last trip to E20, so be there as we aim for a repeat.
Tickets start at just £35 Adults and £20 Juniors and you can buy now at eticketing.co.uk/whufc, over the phone on 0333 030 1966 or in person at the London Stadium Ticket Office.
Click here for full pricing details.