Daniil Medvedev hits underarm serve on his way to victory against Alexander Zverev

Daniil Medvedev started his ATP Finals campaign in dominant form with a straight-sets victory against Alexander Zverev on Monday.

Daniil Medvedev hits underarm serve on his way to victory against Alexander Zverev
Daniil Medvedev started his ATP Finals campaign in dominant form with a straight-sets victory against Alexander Zverev on Monday.