The 22-year old Brazilian has gone form strength to strength this season and following his performance in the 1-0 win over West Ham United on Wednesday night, was praised by Evans for the work he does in United's back four.
"Rafael has been outstanding all season," said Evans.
"He has had to play there quite a lot because there has not been anyone else challenging in that position but his energy at right-back is really good.
"He really sets the tone and is a credit to himself.
"Everyone probably thought it would be a bit tough for him with his brother going away but he has got his head down and worked really hard.
"He is one of the best right backs in the world."