Chelsea and Manchester United battled it out for a place in the 2019/2020 Emirates FA Cup Final looking to join the gunners in final.
Reece James had a rocket well saved by David De gea as the blues looked the much Purposeful of the two teams early on in the first half.
Eric bailly was stretched off at the end of the half after clashing heads with harry maguire; Giroud put the blues ahead moments later.
Mason Mount drilled a low shot home from the edge of the box to double the blues advantage.
Chelsea killed the game off in the 74th minute; Rudiger effort came off Maguire from an Alonso cross.
Manchester United got a consolation goal as Martial was fouled by Callum Hudson-odoi in the penalty area; Bruno Fernandes stepped up and scored.