BUENOS AIRES, Argentina—Top-seeded David Ferrer of Spain began his defense of the Copa Claro title with a comfortable 6-4, 6-1 victory over Argentine wild card Agustin Velotti on Wednesday.

Ferrer, ranked No. 4, is a heavy favorite to win his second tournament of the season. He won in Auckland, New Zealand, last month.

The first-round match was postponed Tuesday because of rain in the Argentine capital.

Second-seeded Nicolas Almagro of Spain played a second-round match later against Andrey Kuznetsov.

In another first-round match postponed from Tuesday, David Nalbandian defeated fellow Argentine Carlos Berlocq 6-3, 2-6, 6-3. Also, sixth-seeded Fabio Fognini defeated Guillermo Garcia-Lopez 7-5, 6-3.