© Peter Staples

Juan Martin del Potro returns to action at the Delray Beach Open.

Del Potro Back In Business At Delray Beach

Americans Isner, Tiafoe and Johnson round out top four seeds

After sitting out the past four months with a right knee injury, a healthy Juan Martin del Potro returns next week as the top seed at the Delray Beach Open.

The Argentine, a wild card entry, kicks off his fifth appearance at this event with a first-round clash against Yoshihito Nishioka of Japan. The 2011 champion has reached at least the semi-finals in three of his previous four appearances.

Second seed John Isner, another wild card, starts his week against Canadian Peter Polansky. The American holds a 10-6 record in Delray Beach. Third seed and Australian Open quarterfinalist Frances Tiafoe faces a qualifier in the opening round, while fourth seed Steve Johnson begins his campaign with an all-American clash against Bradley Klahn.

Other notable names in the draw include 2015 champion Ivo Karlovic of Croatia, Nick Kyrgios of Australia and last month’s ASB Classic champion Tennys Sandgren of the United States.

View the full draw 

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