MIAMI (Reuters) - Daniil Medvedev begins his Miami Open campaign on Friday but the Russian will struggle to generate the kind of interest usually reserved for a defending champion as fans focus their attention on the budding rivalry between Carlos Alcaraz and Jannik Sinner.

Medvedev arrived on the tennis scene trying to muscle in on the Big Three's monopoly of the spotlight occupied by Roger Federer, Novak Djokovic and Rafa Nadal.

But even as that generation rides off into the sunset Medvedev, now 28, again finds himself the odd man out as world number two Alcaraz and Australian Open champion Sinner set stadiums alight.