Alex Marquez ended MotoGP’s Sepang pre-season test at the top on Thursday, as Yamaha returned to action after resolving its recent engine concerns.<br>Gresini rider Marquez set a best time of 1m56.402s on his factory-spec Ducati GP26, comfortably eclipsing Joan Mir’sWednesday benchmark of 1m56.874s.<br>His effort was also just a fraction shy of the all-time Sepang record of 1m56.337s, set by ...<a class='more' href='https://www.autosport.com/motogp/news/motogp-sepang-test-alex-marquez-tops-final-day-as-yamaha-returns/10795440/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>