If Ernesto Valverde can finally put one over on one of the most vilified coaches in modern European football on Wednesday, then this will have been one hell of a few days for the Athletic Club coach after beating Villarreal in LaLiga at the weekend.
There won't be a greater contrast in personalities anywhere in this week of European football than when chess-playing, cycling-addicted, talented-photographer Valverde, who loves playing Rolling Stones covers with his group, comes face-to-face with Jose Mourinho again.
The occasion: Bilbao's red-and-white Basque-only club travelling to play Turkish giants Fenerbahce for the first time in the clubs' respective histories.