Valentino Rossi and Marc Marquez won’t remain bitter rivals all their lives, believes one rider who battled against the former in multiple classes.

Marc Marquez came back “from hell” to be again at the top of MotoGP, his fellow Spaniard Pedro Acosta says. He is on course to match his rival Valentino Rossi 's tally of nine world titles.

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Runaway leader Marc Marquez was in ominous form as MotoGP returned from its month-long mid-season break, topping Friday ...