LOS ANGELES - Argentina's Juan Monaco won the ATP claycourt title in Houston on Sunday, cementing his return from a right wrist injury with a 3-6, 6-3, 7-5 victory over defending champion Jack Sock. Sock, the fourth seed, started the match well, winning the first game 6-3. Monaco then bounced back in style and won the second game 6-3. Sock was battling cramps in the third set but still managed to erase two breaks of serve in the decider before high-flying Monaco finally finished him off and won the title. The 32-year-old Argentinian claimed his first ATP title since Duesseldorf in 2013 and his second in Houston to go with the one he earned in 2012. The former top-10 player had missed six months with a right wrist injury, slipping from 39th in the world a year ago to his current 146th.