Quartararo made his MotoGP debut in 2019 alongside Morbidelli at the Yamaha SRT squad before the Frenchman was promoted to the works teams from the start of the 2021 season, when he claimed his first and so far only title.
Morbidelli was reunited with Quartararo in 2022, when the Italian also secured a factory ride. The duo raced together until last year when Morbidelli lost his ride and was replaced by Rins.
The Italian, a member of Valentino Rossi's VR46 Academy, will partner with last year's runner-up Jorge Martin at Pramac Ducati.
Morbidelli was absent from the first pre-season test at Sepang last week after an accident he suffered while training at Portimao last month. He will also miss the Qatar test that concludes the pre-season before the racing begins at Losail on 8-10 March.
During their four years as team-mates, the distance between Quartararo and Morbidelli was evident, partly because of their different personalities with the Frenchman much more of an extrovert than the Italian.
At Sepang, Yamaha's star rider shared the garage with Rins, whom he always said he feels much closer to, not only because they both live in Andorra, but also on a personality level.
Source: Autosport