If man utd are in a bad position i think he will definetly think about this options and change for a champions league club. His playing time is reduced by a large amount and i think he isnt satisfied with it. He needs more goal chances and he aint getting that in the epl or europe league
I really cannot agree with @Pokapoka124 because I think Cristiano Ronaldo is still a player with great physical attributes. He is one of the fittest if not the fittest player at the age of 38. I don't think Cristiano Ronaldo not playing regularly has anything to do with his fitness. I think it purely comes down to the fact that Manchester United is able to produce the results that they want without Cristiano Ronaldo. Basically, Cristiano Ronaldo is not a necessity for Manchester United right now. That is the only reason why he is not being given 90 minutes in every match.
Yes, he is probably not as good as he was before. But he is not washed. And Manchester United not being able to bring the results can obviously not be the fault of only one player.