The Manchester United player left the stadium at the end of the game after being taken out of the game.
After missing United's tour of Thailand and Australia to deal with a family issue,Ronaldo came back against Spain.
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He started the game and was replaced at the start of the second half. United sources wouldn't comment on whether his early exit was approved by the manager, or if he left before the end of the game.
The player wants to leave the club this summer in order to find regular playing time in Europe's premier club competition. According to sources, Manchester United are yet to receive a serious offer for the Portugal forward.
According to sources, Ten Hag encouraged the squad members to go to the Rayo game.
Scott McTominay and Anthony Martial were among the players who were in the directors box. They looked on as Amad opened the scoring for United early in the second half, but they ended their preseason with three wins, two draws and a loss.
Ten Hag said that they made a good preseason. There is a lot of room for improvement, but we are ready for the season and we have made good progress.
It's a process that continues during the season but for next week it's about a result. The reception was great. I felt the vibe of the team in the stadium.
Fans and the team have to co-operation in order to get the right results.