NEW YORK (Reuters) -Last year's runner-up Jessica Pegula sprinted through her U.S. Open fourth-round clash with American compatriot Ann Li to win 6-1 6-2 on Sunday, moving with ruthless efficiency to close it out in under an hour.
Pegula had a poor run-up to the tournament, exiting early from Washington, Montreal and Cincinnati, but has yet to drop a set in New York and put up a dozen winners on Arthur Ashe Stadium as she found her power from the baseline.
