TERMAS DE RIO HONDO, Argentina (Reuters) - Marc Marquez beat his younger brother Alex in Saturday's sprint at the Argentina Grand Prix to extend his lead in the MotoGP championship and Francesco Bagnaia came in third as Ducati swept the podium.
Marc had clinched his second straight pole of the season with a lap record earlier on Saturday and the Spaniard led from start to finish, with Gresini Racing's Alex finishing less than a second behind him.
