The Sepang round of MotoGP could see all three championships clinched this weekend, with Jorge Lorenzo, Marc Marquez and Sandro Cortese all closing in on their respective world championships. The job is easiest for Cortese, all the German has to do to become the inaugural Moto3 champion is finish one place behind Maverick Vinales and the title is his. After getting a little too excited at Motegi, Cortese will doubtless be heading to Sepang in a much calmer frame of mind.

Marquez also faces a relatively manageable task, but unlike Cortese, he does not have his fate entirely in his own hands. If Pol Espargaro wins at Sepang, then the earliest Marquez could be crowned champion would be at Phillip Island. If Espargaro does not win, the Marquez is in with a very good chance: should Espargaro finish the race in third or worse, then Marquez only has to finish directly behind him; if Espargaro finishes second, then Marquez has to win.

On current form, it would be hard to bet against Marquez, but Sepang was the circuit where the Spaniard was badly injured last year, suffering damage to his eyes which limited his vision and threatened to end his career. It will be interesting to see whether the memory has spooked Marquez, but judging by his performance this year, that seems faintly ridiculous.

Jorge Lorenzo faces the biggest challenge, with only a 28-point lead over Dani Pedrosa. Lorenzo will not only have to win at Sepang, but he will also need Pedrosa to finish no better than thirteenth. Given that the only time that either man has finished outside the top four has been due to mishap, the chances are the title chase will go down to Phillip Island, at the very earliest.