By Ed Molina (staff@latinospost.com) | First Posted: Sep 02, 2013 11:42 AM EDT

Roger Federer and Rafael Nadal headline Monday's U.S. Open action, with Pittsburgh Alison Riske, also on tap for action.

Riske - who had not won a U.S. Open match until this year and ended up upsetting No. 7 ranked Petra Kvitova on Saturday - kicks off the day at Arthur Ashe Stadium against Daniela Hantuchova with a spot in the quarterfinals on the line.

"It's just really cool because I feel like I'm playing within myself," said Riske, according to Sports Illustrated. "I'm not doing anything crazy. It just feels really comfortable. It's exciting."

Federer, who disposed of France's Adrian Mannarino in 1 hour 21 minutes Saturday night, is back on a roll - having played only 4 ½ hours at the tournament thus far, he now faces Spain's Tommy Robredo in the third match at Arthur Ashe Stadium.

Federer, who admits it has not been his best year, still feels he can finish the year strong in one of his favorite tournaments on the schedule.

"You come to New York, and if you're not excited anymore, you're in the wrong place," said Federer, according to ABC News. "I'm just totally excited being here. I have always enjoyed playing here. Have never had a bad tournament at the U.S. Open."

Nadal, the two-seed in the tournament, is scheduled to face up against Germany's Philipp Kohlschreiber to lead off the night-cap at Arthur Ashe. Nadal beat Croatia's Dodig 6-4, 6-3, 6-3 on Saturday and has gone 18-0 in hard-courts this season.

"It's great to be in the fourth round," said Nadal, The Guardian reported. "Better today than the first two rounds. Here we are after six months back playing tennis again in a great position. I am trying to play more aggressively, it's true, but that's because I am playing well. If I'm not playing well, I have to be more defensive."

Should Federer and Nadal win today's matches, they will face each in the quarterfinals - first time ever at the U.S. Open.

Live Television Coverage
The 2013 U.S. Open can be seen CBS / CBS Sports Network from 11 a.m. to 6 p.m. and ESPN2 from 7 p.m. to 11 p.m.

Live Stream (Online)
Live stream coverage can be seen on ESPN3 or US Open Live.

Live Stream (Radio)
Live stream coverage can be heard on USOpen.org.

Match Start Times
You can find Day Eight schedule by clicking here.

Live Score
Live scores could be followed by clicking here.

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