Gonzalo Montiel scored the decisive penalty in the shootout for Sevilla after the scores had finished 1-1 at the end of extra-time. Paulo Dybala had put Roma ahead in the first-half before Sevilla drew level after the break via Gianluca Mancini's own goal.
Lamela later said, "This is amazing, I can't ask for more.
"This feeling is unbelievable. We are going to enjoy it a lot.
"It was a tough game to play. Roma defend well and it was difficult to find spaces and create situations."