New Roma signing Gerson has said moving to the club "was the best choice for me."
Gerson, 20, joined from Brazilian club Fluminense for €16.6 million after having been strongly linked with Barcelona.
The midfielder spoke to reporters at a news conference, saying he would wear the Roma shirt "with great pride."
"I am happy to be here and I will do my best," he said. "I chose Roma because they are a great team. It was the best choice for me."
- AS Roma (@OfficialASRoma) 10 July 2016
The Brazil under-20 international said he hoped to follow in the footsteps of countrymen who had shone in Italian football.
"I would love to be remembered like many fellow Brazilians at Roma," he added. "Paulo Roberto Falcao is a legend, but I never got to see him play.
"Now I have to prove my worth. I am ready to do my best to help my teammates."
Gerson said Roma were targeting silverware next season, and added: "I thank everyone for the praise. I know it means I have responsibility, but I am ready to do my best."