The Latest: '09 champ del Potro edges Thiem in 5 sets

NEW YORK (AP) — The Latest on the U.S. Open, the year's last Grand Slam tennis tournament (all times local):___8:20 p.m.

Juan Martin del Potro saved two match points and erased a two-set deficit to come all the way back to beat No. 6-seeded Dominic Thiem 1-6, 2-6, 6-1, 7-6 (1), 6-4 and reach the U.S. Open quarterfinals.

Del Potro, the 2009 champion at Flushing Meadows, used a pair of aces to erase match points for Thiem at 6-5 in the fourth set, then dominating the ensuing tiebreaker.

In the fifth set, as the match stretched beyond 3 1/2 hours, del Potro broke in the last game when Thiem double-faulted.

Here's how close it was: Thiem actually won more points, 141-139.___7:30 p.m.