Eighth seed Naomi Osaka made safe progress into the second round of the Brasil Tennis Cup with a straight-sets demolition of Ana Sofia Sanchez.

Osaka picked up her first win since a run to the third round of the French Open, dispatching world number 330 Sanchez 6-1 6-1 in just 42 minutes on court.

Veronica Cepede Royg avoided a major banana skin against an opponent ranked 811 places below her, coming out a 6-2 6-3 victor against wildcard Maria Fernanda Alves.

Royg was beaten in the first round of the Bank of the West Classic by Nao Hibino, but could have a chance for revenge in the second round in Florianopolis if the Japanese seventh seed beats Emily Webley-Smith on Monday.