Nats Day Nine: Clash of Top Seeds Set for Sunday

It's No. 1 vs. No. 2 in both 16s and 18s singles on Sunday, which holds out a promise of two exciting matches to close the delightful week of tennis in Kalamazoo.

Donald Young will be trying to win back-to-back championships at Kalamazoo, while Brennan Boyajian is after his third consecutive National 16 singles title.

Details of Saturday's matches, including the doubles finals, are at ustaboys.com.