Inter won 4-2, with Perisic scoring twice on the night in extra-time.
“I always believed, when we were 1-0 up or 2-1 down, I tried to lift everyone's heads, as we lost our heads for 10-15 minutes, but we reacted well and I think the victory was deserved," Perisic told Sport Mediaset.
“I always feel like a leader, but when the team works like this, it's easier to be a leader. We just need to keep going, there are two final games left, anything is possible in football and we must keep believing."
With his contract running down, Perisic also stated: “I don't know anything yet. With important players, you don't wait to the last minute. You ought to know that too."