The temporary coach insists the routine win over Deportivo has left his men fired up ahead of the Champions League second leg game against the Rossoneri
The Blaugrana tightened their stranglehold at the top of the Liga against the Riazor outfit thanks to goals from Alexis Sanchez and Lionel Messi.
And Roura has maintained that the victory will provide a timely boost for the second leg against Milan, with his men needing to reverse a 2-0 deficit against their Serie A opponents in order to progress.
"We are very clear how we will play against Milan, and how they want to play us. We are psyched," the 45-year-old told reporters.
"The Liga is key for us, we shouldn't forget that. Three points were important, and we're keeping our lead. The game we played today benefits us. Not conceding was important."
Sanchez, who has been a bit-part player at Camp Nou this season, put in an instrumental performance but Roura was coy over whether the Chilean could start against the Rossoneri.
"Alexis playing on Tuesday is an option. He was important tonight and helped us a lot, scoring and moving well," he continued.
"[Cesc] Fabregas? Everyone has good and bad games in a season, but Cesc is having a great season, he has played some extraordinary games.
"Xavi has trained yesterday, we'll see how he recovers from that, and we'll decide later if he can play on Tuesday.
"Some might predict who plays and who will not play against Milan, but the starting line-up is yet to be decided. Having all players competing is good for the team."