Both clubs have now finalised the deal, with United determined to secure the forward ahead of their pre-season tour in the United States.
Crystal Palace also signed centre back Maxence Lacroix, while Matt Turner arrives for a season-long loan.
In other games, Manchester City have yet to win any of their last four league matches.
Rashford and Martial came in the second halftime and scored all the goals to help United beat Nicosia 3-2.
Jadon Sancho round Ward in goal to slot in for the game’s only goal.
Manchester United returned to winning ways Monday night, beating Liverpool 2-1 at the Old Trafford
Manchester United put up an impressive performance, thrashing Liverpool 4-0 on Tuesday.
Cristiano Ronaldo and Jadon Sancho sent Manchester United into the Champions League round of 16 with a 2-0 win over Villarreal at La Ceramica on Tuesday.
Sancho, 21, had a great career with Brussia Dortmund in the last four seasons, netting 50 goals with 64 assists.
English FA condemned the racist attacks launched against Marcus Rashford, Bukayo Saka and Jadon Sancho after the trio missed their penalties as England lost to Italy.
