Why Rossi and Vinales are unlikely to stay friends

The winners and losers of MotoGP's reshuffle More than half of the MotoGP grid is a new face in a new place this season. Some have starred, but others need to knuckle down and do better 1496275200 MotoGP

Has Rossi's replacement already stepped forward? Sooner or later, Valentino Rossi will retire. But even if the MotoGP legend doesn't hang up his helmet until the end of 2018, one rider on the grid might already have one arm on the '19 Yamaha's handlebars 1494374400 MotoGP

How Rossi highlights Raikkonen's shortcomings While Valentino Rossi continues to fight through adversity to remain a MotoGP title candidate, Kimi Raikkonen appears more and more of a hanger-on in Formula 1. The difference between the two veterans is stark 1492560000 F1

Was Lorenzo's Ducati debut as bad as it looked? As far as first races go, Jorge Lorenzo's debut with Ducati was underwhelming at best. But was that down to teething problems, or does Sunday's race in Qatar point to further problems to come throughout the year? 1490745600 MotoGP

Can Yamaha's new star topple Marquez? Marc Marquez probably shouldn't have won the 2016 MotoGP title, but he did. His reward is facing competition that looks even stronger this season - and is coming from more areas 1490227200 MotoGP

MotoGP shows F1 'customer' is not a dirty word As Formula 1's leadership change prompts fresh thinking about its future shape, the new chiefs ought to take a lot at how customer teams have contributed to the MotoGP spectacle 1485907200 MotoGP

Would Loeb be a mistake for Citroen? At first the idea of Sebastien Loeb returning to the Citroen World Rally Championship team seemed both implausible and ill-advised. Now, after his second test, it makes complete sense 1506038400 WRC

Why Williams is interested in Kubica Carlos Sainz Jr's loan move to Renault appeared to kill off any chances of Robert Kubica making a Formula 1 comeback. But Kubica could still find a lifeline with Williams - if he can outshine its other options 1506038400 F1

How a Chelsea FC trip encapsulates Massa's reprieve Felipe Massa thought he'd waved goodbye to F1 for good at the end of 2016, but he's been given a last chance to have another crack at the sport he loves. JAMES ROBERTS joins him as he indulges his passion for a very different sport at Chelsea's training ground in Surrey 1505952000 F1

The hubris that's slowly killing McLaren and Red Bull So desperate are Red Bull and McLaren for success in Formula 1, they are both prepared to gamble on the engine supply front. The next 12 months should indicate whether either can revive its fortunes 1505952000 F1

Singapore debacle was no racing incident The Singapore Grand Prix was a peculiar race, but strangest of all was the stewards' decision not to apportion blame to one driver in particular 1505952000 F1

How Mercedes' lottery winner is targeting F1's jackpot As calm out of the cockpit as he is within it, this man is a true product of his Finnish hometown - as Anthony Peacock learned on a visit to Nastola for the Valtteri Bottas Duathlon 1505865600 F1