Lazio captain Stefano Mauri admits their season will be defined this week.
Lazio meet Juventus in the Coppa Italia final tonight ahead of a Champions League decider against AS Roma.
Mauri said: "We know that our entire season is going to be played out in four days. We've done well so far and have improved a great deal, so it's time to reap what we have sowed.
"Which is the most important? I won't choose, because we want both objectives. We'll give it our all, but nobody can doubt that.
"We know Juve's characteristics and that they have weaknesses. We want to cause them problems and are working on the right tactical pointers."