Demba Ba's sumptuous 49th minute volley separated the sides in the quarter-final replay following the 2-2 draw at Old Trafford in early March and now the Blues will prepare for Manchester City in the April 14 final four fixture but despite the triumph, Benitez is still focusing on a top-four Premier League finish.
"The priority is the top four, but we have to approach every competition trying to win," he told Sky Sports.
"We had two games in less than 48 hours so had to manage the squad. We don't have too many players in some positions and we have to manage. I think we did it really well.
"The race for the top four will be until the end of the season. We're in the top four with a game in hand, we're in a very good position, the semi-finals of the FA Cup and the quarter-finals of the Europa League. I think it's a great season at the moment."