Nadal takes first step toward Federer U.S. Open showdown

NEW YORK (Reuters) - World number one Rafa Nadal dismissed Dusan Lajovic 7-6 (6) 6-2 6-2 to ease into the U.S. Open second round on Tuesday, setting the Spaniard on a collision course for a long overdue Flushing Meadows showdown with Roger Federer.