Well well well...Can't be bothered reading through the entire thread so not sure if this has been posted before, but here's an article from last year where he said he wanted to play on the left:
"Valencia CF already knows that I want to play on the left wing next season, in that position I can give my maximum level and I am ready to take responsibility. I want to be important and I feel ready to start."
He's been playing on the right because Guedes plays on the left and is undroppable for them
This should end s certain type of complaint :)