Gresini Racing team manager Michele Masini revealed the extent of Alex Marquez's injuries in detail after his retirement from the

Marquez's younger brother Alex, who is his closest rival in the standings, fractured his hand in a crash with Pedro Acosta. The 29-year-old, who is now 68 points behind his older brother, jumped back to his feet but was gingerly holding his wrist as he was biked back to the pit lane and was taken to the medical centre for a check-up.