Valentino Rossi's wait for tangible acceleration progress on his M1 goes on, after being unable to improve his Yamaha's performance during Monday's official MotoGP test at Brno. But it wasn't all bad news.
Cal Crutchlow fears his hopes of getting a carbon-fibre swingarm on his Honda RC213V have suffered a setback after factory test rider and wild-card Stefan Bradl was involved in a first lap pile-up at Brno on Sunday.
Following the Czech Republic MotoGP, a day of official testing is being held at the Brno circuit. Pol Espargaro is absent after breaking his collarbone in Sunday's warm-up session, while Maverick Vinales is in doubt due to his heavy accident on lap one of the race.
TV footage was inconclusive and some of the riders involved said they weren't sure what happened, but Jack Miller got a perfect view of the first lap carnage in Sunday's Czech Republic MotoGP.
Dovizioso wins a stunning Czech Republic MotoGP battle over team-mate Lorenzo and title leader Marquez. After a tactical race in the early stages, the top three broke clear and pushed flat out - Dovizioso setting the fastest lap of the race on his final lap.
Pol Espargaro will miss Sunday's Czech Republic MotoGP race, Monday's official test and probably KTM's home round in Austria next weekend after fracturing his collarbone in a warm-up fall. The cause of the Spaniard's Turn 3 accident is still to be officially confirmed.
Jorge Lorenzo's former Yamaha crew chief Ramon Forcada may be splitting from Maverick Vinales at the end of the MotoGP season, but there appears no chance of the pair reuniting at Repsol Honda next season.
Andrea Dovizioso has confirmed he will use the new Ducati fairing upgrade for the Czech Republic race after securing his first MotoGP pole position in almost two years.
Suzuki test rider and wild-card Sylvain Guintoli faces a gruelling Czech Republic MotoGP race, having discovered on Saturday that he has two broken ribs. The injury was sustained a week earlier at the Suzuka 8 Hours, but the Frenchman went on qualify 21st out of the 26 riders at Brno.
MotoGP Rookie Hafizh Syahrin enjoyed his best Friday in the premier-class as he set the Yamaha pace with fourth on the Friday practice timesheets at Brno in the Czech Republic.