Ramsey is joining Italian giants Juventus and officially becomes a former Arsenal player on July 1.
Robert Pires believes Arsenal are already regretting their decision to let Aaron Ramsey leave the Emirates.
The Wales international will join Serie A side Juventus as a free-agent on July 1st after running down his contract at the north London club.
And former Les Bleus star Pires is convinced Ramsey can win the Champions League with the Italian champions.
He said as the Mirror reported: “Tactically Aaron will have a lot to learn, but technically he’ll keep developing every day alongside some great players.
“Aaron already knows it’ll be difficult to replace [now-Zenit St Petersburg midfielder Claudio] Marchisio, since he played at Juventus for more than a decade. That’s why the fans will have to give him some time, but the goals will come — you’ll see!
"Juve can win the Champions League next season, above all if they sign Rabiot and Paul [Pogba] too.”