Nadal 's fifth-seeded compatriot David Ferrer is out following a shock 6-4 6-3 defeat to Uzbekistan 's 51st-ranked Denis Istomin . Former world No . 1 Roger Federer defeats Second seed Milos Raonic at Indian Wells . Second seed Maria Sharapova advances after win over fellow WTA . Ana Ivanovic beats Victoria Azarenka in the battle of the former world No . 1s . Top seed Caroline Wozniacki and No . 2 Maria Sharapova safely advance .
Former world No . 1 Roger Federer defeats Second seed Milos Raonic at Indian Wells . Second seed Maria Sharapova advances after win over fellow WTA . Ana Ivanovic beats Victoria Azarenka in the battle of the former world No . 1s . Top seed Caroline Wozniacki and No . 2 Maria Sharapova safely advance .