ZAGREB, Croatia, Feb. 3 (UPI) -- Defending champion Marin Cilic claimed a straight-set win Monday in first-day action at the PBZ Zagreb Indoors in Croatia.
Cilic picked up the ninth ATP title of his career by winning the PBZ Zagreb Indoors last year in his home country. He also won the event in 2009 and '10. He started his defense Monday with a 6-4, 6-4 win over Mate Delic, a fellow Croat.