Today's friendly at Old Trafford is being shown live on the United App, MUTV and ManUtd.com.
Cristiano Ronaldo has been named in Manchester United's starting XI for the home friendly against Rayo Vallecano.
The no.7 makes his first appearance of pre-season in Erik ten Hag's opening Old Trafford game in charge.
New signings Lisandro Martinez and Christian Eriksen both feature, ensuring a United bow for the defender and a first start for the Dane, after he came on as a substitute in the 1-0 defeat to Atletico Madrid on Saturday.
France international Raphael Varane is wearing the captain's armband and youngster Alejandro Garnacho makes his first senior start for the club.
Fellow Academy prospects Charlie McNeill, Isak Hansen and Charlie Wellens are among the substitutes for the 16:00 BST kick-off.
United: Heaton; Laird, Varane (c), Martinez, Telles; Garner, van de Beek; Chong, Eriksen, Garnacho; Ronaldo.
Substitutes: Bishop, Kovar, Bailly, Fish, Wellens, Hannibal, Hansen, Iqbal, Savage, Amad, McNeill, Shoretire.
Today's friendly at Old Trafford is being shown live on the United App, MUTV and ManUtd.com.