U.S. prospects Mmoh, Rubin to meet in Tiburon

   Two of the United States' top men's prospects will meet on Monday in the first round of the $100,000 Tiburon (Calif.) Challenger.
   Fourth-seeded Michael Mmoh, 19, will face Noah Rubin, 21, for the second time not before 3 p.m. at the Tiburon Peninsula Club in the San Francisco Bay Area.
   Rubin won 6-2, 6-3 in the semifinals of last year's $100,000 Stockton Challenger as Mmoh aggravated an abdominal strain at 2-2 in the first set. Rubin, only 5-foot-9 (1.75 meters) and 150 pounds (68 kilograms), went on to lose to U.S. phenom Frances Tiafoe in the final.
   Mmoh, the 6-foot-1 (1.85-meter) son of former journeyman pro Tony Mmoh, was the runner-up to Darian King at Tiburon last year as a qualifier.
   Rubin reached the second round of the Australian Open as a qualifier in January, losing to eventual champion Roger Federer 7-5, 6-3, 7-6 (3). As a junior, Rubin played at the John McEnroe Tennis Academy in New York and won the 2014 Wimbledon boys title.
   Mmoh is ranked No. 142 to Rubin's No. 195.
   Also on Monday, 2010 Tiburon champion Tobias Kamke of Germany will play Christian Garin of Chile. 
   In today's second round of qualifying, top seed and 2015 champion Tim Smyczek beat Greg Jones of Australia 6-4, 6-1.
   Smyczek will play fellow American Sekou Bangoura, who defeated former Cal star Andre Goransson of Sweden 6-2, 6-4, for a berth in the main draw.
   Here are the singles qualifying draw, the singles and doubles main draws, and Monday's schedule.