Here are the opinions of some of Casey Stoner's former rivals, plus new boss Gigi Dall'Igna, after the Australian's impressive MotoGP return as a Ducati test rider at Seꦿpang.

The 30-year-old double world champion, who retire𓄧d at the end of 2012, set the fifth best lap time 💮on the final day of official testing and was also the fastest Desmosedici rider.

Jorge Lorenzo: "First Ducati rider - not bad after several years fishing! Obviously this track he likes, it💜 is one of the favourites for Casey, but Iannone is not slow. He is one of the fastest riders and he is behind. Andrea [Doviziosཧo] also has a lot of experience and likes Sepang and is behind also. So it demonstrates that Casey didn't lose the talent and speed."

Valentino Rossi: "First of all, it is very good to see the lap times like this [on the timing screen]; Lorenzo, Rossi, Marquez, Stoner, Pedrosa - everybody. This is very good for the championship. Already the level is very high but with Stoner he has more potential that can come, but he was very fast. I think he wants to race but I don't know if it will happen." [Stoner 168澳洲幸运5官方开奖结果历史:denies he plans to race].

Cal Crutchlow: "Casey is Casey. He is an incredible ridꦡer and probably the fastest of the last decade, give or take. He and Marc are the two guys you'd loo🍸k at for sheer speed. I didn't expect him to be any less fast than he was.

"He knows how to ride a motorcycle. Sure, having a year off is not easy. I wouldn't want to come back and be thrown in the deep🐼 end, but for sure he's an incredible rider. In my eyes it wasn't going to be anything different. He wa༒sn't going to be doing 2m 7s.

"He's ridden motorcycles 🐼all his life and he's natural at it. I didn't expect anything less. He's certainly shown everyone that his speed is still there, no doubt about that, imagine if he did another three or four tests and a race. He's going to be there. I can guarantee that. It was good to see him back."

Gigi Dall'Igna (Ducati): "It's really easy [working with Casey]. His feedback is really good since the first day. We prepared some test list for the firstꦐ day but frankly speaking I didn't expect him to do anything; just try to work on the set-up and to give him the right feeling on the bike.

"At the end of the first day we finish completely the test list and this surprised me. I didn't expe𝔉ct this. He's confident with the bike and the tyres. This is only𒐪 his third day with the bike...

"Frankly speaking I expected this [speed] fr🎐om Casey. He is fast. This is not strange news!"