There was a delay in his sending-off as the referee first had a chat with Mourinho before dismissing the Ecuador international, with the United manager having declined a request to replace his skipper at the time.
Valencia appeared to retaliate for an earlier challenge that Saucedo made on Juan Mata which forced the Spaniard off with an ankle injury, and Mourinho felt the team from Utah were being a little too enthusiastic in their tackles.
“I think the delay was because the referee asked me to change the player and I didn’t,” he told reporters. “Because I don’t agree with the card.
“Because Saucedo, I think is the name of the boy, he was really aggressive during all of the second half, with what happened to Mata and some other actions where it was a bit dangerous, which I understand.
“Young people, enthusiasm playing against Manchester United, but you come with the mentality of a friendly match and in the end you find yourself in a different mentality.
“But it’s pre-season, no problem and also a good experience for us to play with one player less. Mata has a big ankle but I hope nothing important. A few days, a week maybe.”