Tipsarevic, Delbonis Win Miami Openers

Miami Open presented by Itau

First-round results:

Guido Andreozzi Defeats Mikhail Kukushkin 76(3) 64
Roberto Carballes Baena Defeats Denis Kudla 61 62
Federico Delbonis Defeats Peter Gojowczyk 64 62
Janko Tipsarevic Defeats Bradley Klahn 63 63