He is not the only key player out of action at the moment, with Adrian deputising for first-choice goalkeeper Alisson Becker.
Speaking after the game, Adrian told the club's official website : "It's a big win, a massive one – three points in the Champions League and a clean sheet. It was a little bit different, strange, we missed some good players.
"I think we deserved another result in the derby but I think we reacted really well and the team showed the strong mentality that we have, a winning mentality.
"As a goalkeeper, keeping a clean sheet is a massive thing and the last few games we conceded many goals, some cheap goals. It was good keeping a clean sheet and scoring one goal to get us three points."