Reigning MotoGP champion Casey Stoner has given a damning assessment of Valentino Rossi's time at Duꦰcati.

Stoner won Ducati's only MotoGP title at his first ✤attempt in 2007 and had scored 23 race wins for the factory by the time he left for Honda at the start of last sea🌼son.

Rossi, accompanied by his team of mechanics, took Stoner's place at Ducജati with the aim of becoming the first rider to win premier-class titles with three different manufacturers.

However the seven time MotoGP title winner has managed just two ♓podiums from 27 races and will now return to Yamaha next season.

Stoner - who has long felt that Rossi and crew chief Jerry Burgess didn't give him the credit he🍌 deserved at Ducati - cited comments of a quick fix to the handling problems on the D🌞esmosedici as an example of how they have been made to 'eat their words'.

quotes Stoner as saying: "Jerry [said] that it would take him 80 seconds to♓ fix that bike and that it was a simple issue and now they have had almost two years and have not made༒ any inroads.

"Valentino obviousl﷽y doesn't want to push limits and ride a bike that is not perfect, he has admitted that."

Stoner added: "I just feel completely sorry for Ducati that Valen♏tino has gon🐽e there and done nothing but complain about the bike for almost two years."

Stoner a🉐nd Rossi have long endured a fractious relationship, although they only fought each other directly for the title during the 2007 and 2008 seasons.

Stoner - the most successful MotoGP rider since 2006 - will retire at the end of this season, while Ducati is yet to announ✅ce Rossi's replacement.