NEW YORK (AP) — John Isner is not the sort to study a lot of video of past matches in order to prepare for an upcoming opponent.
If the highest-ranked American man wanted to, he'd have plenty of material in order to prepare for the task he faces Saturday: facing 22nd-seeded Philipp Kohlschreiber of Germany in the third round of the U.S. Open.
This is, after all, the third consecutive year that Isner will meet Kohlschreiber in the third round at Flushing Meadows.
"I'm not a big game-tape guy myself, but my coach — I know he watches that and then he relays it to me," said the 13th-seeded Isner, who is 31 for 31 in service-game holds this week. "But certainly ... it's a weird situation. We have played three years in a row in the third round at this event. It's bizarre."
Kohlschreiber is 2-0 in those New York matchups, winning in five sets in 2012, and in four a year ago.
Isner, though, has won all four of their other matches against each other.
Here are some other things to watch on Day 6 at the year's last Grand Slam tennis tournament:
DJOKOVIC VS. QUERREY: Isner is one of two American men left in the field. The other is Sam Querrey, a former top-20 player now ranked 57th who has the unenviable task of facing No. 1-ranked and No. 1-seeded Novak Djokovic.
They've played each other eight times previously, and Djokovic has won seven of those.
Djokovic is also 7-0 in U.S. Open matches against American opponents. The seven-time major champion is seeking to get to the fourth round in New York for the eighth year in a row.
SERENA VS. AN AMERICAN: For the third time in three matches at this year's U.S. Open, Serena Williams faces an American, this time 52nd-ranked Varvara Lepchenko.