Valencia coach Marcelino hailed Goncalo Guedes after their 1-1 draw at Europa League opponents Krasnodar.
Guedes' goal saw Valencia win the tie 3-2 on aggregate and earn a place in the quarterfinals.
Marcelino enthused: "If he is the biggest investment and bet in the history of Valencia, it is for him to be decisive as he was today.
"He has had some irregular months and played in a diminished capacity from a physical point of view.
"But now it is very good for him to have scored this goal and also for the team."