The Gunners wrapped up their first summer signing on Thursday by announcing that they had acquired the 25-year-old from Barcelona for a fee in the region of £30m.
Much has been made over just where manager Arsene Wenger will elect to deploy the Chilean, but whether it is up front or on the flank, Ramsey is convinced that Sanchez will prove a hit in North London.
"I'll leave that to the manager," Ramsey told Sky Sports News. "We all know about his qualities - he's quick, he can get in behind and dribble with the ball so he'll certainly slot in with ease.
"He's a fantastic talent. He's proven it at Barcelona, and at the World Cup he was Chile's main player. I'm sure he'll settle right into this squad and show his quality.
"It's a great signing for us and he'll certainly add quality to the team and bring his own style. We're all looking forward to working with him."
Sanchez, who helped Chile reach the second-round stage of the World Cup this summer, will join up with Arsenal in the coming weeks ahead of the new Premier League season.