Torreira came to the Gunners of Sampdoria for £ 26m this summer and was a major base under Unai Emery.
The Uruguayan starred in Arsenal's last eleven victorious race. This series ended on Sunday with a 2-2 draw at the Crystal Palace.
Silva was from 2003 to 2004 a member of the team of Arsenal Invincibles. He also helped Brazil win the World Cup in 2002.
And he has given the 22-year-old his seal of quality and helped him to continue to flourish.
"I thought he played very well for Uruguay in the World Cup," Gilberto said.
"It was nice to compare the way this guy plays – he's not tall, he's a middle-sized player – but he knows how to position himself and play beautiful football.
"He's making things easy, and of course we at Arsenal have high expectations that the team is ticking, support and position.
"Arsenal needs someone like that and I hope he's okay."
Although Arsenal had a positive start to the season, Robbie Savage has asked Emery to sign a key signing in January.
"Unai Emery's test will be next week when Liverpool brings its big guns to the Emirates, but the first evidence shows that Arsenal is back in business," Savage told The Mirror.
"The biggest compliment I can pay is that I did not hear that supporters of Arsenal said they would wish Arsene Wenger still had the say.
"This is not an excavation on Wenger, who will always be the man who built The Invincibles, a tribute to Emery for putting him under the table so quickly.
"Although they are still a top middle class who are not challenging for the title, Emery's Gunners seem to be able to reach the top four places.
"And that could upset the apple cart across northern London, where Tottenham seemed to have conquered the hill, though he has not shown trophies since 2008."