Collins and Osaka win to reach 2nd round at Madrid Open
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By TALES AZZONI
AP Sports Writer
MADRID (AP) — Former No. 1 Naomi Osaka has kicked off her clay season with a comfortable straight-sets win over qualifier Anastasia Potapova in the first round of the Madrid Open. Osaka has pledged to be more positive with herself this season. The four-time Grand Slam champion defeated Potapova on center court. Australian Open finalist Danielle Collins advanced to the second round with a two-sets victory over Monica Puig. The sixth-seeded American won the last eight games on Arantxa Sánchez Vicario Stadium.