Marc Marquez expects his younger brother Alex to be his main rival as he chases a seventh MotoGP world championship crown and is convinced it is just a matter of time before the Gresini Racing rider wins his first race in the premier class.

The factory Ducati rider continued his unbeaten start to the season by adding to his two wins on the opening weekend with victory in the Argentina sprint

MotoGP did not have two brothers finishing first and second for 76 years, but the Marquez brothers have achieved the feat twice within two weeks. Sunday’s victory also saw the 3