Those reaching the men’s round of 16 at Wimbledon include six players aged 27 or older, among them Tommy Haas, 31, and Radek Stepanek and Ivo Karlovic, both 30. The message is clear – when it comes to the brief lawn tennis season, experience pays.

On the women’s side, Russians made up a quarter of the final 16. And unlike on the men's side, youth is serving up victories.

Two teenagers, 19-year-old Victoria Azarenka of Belarus and 18-year-old Caroline Wozniacki of Denmark, are into the second week.

On the men’s side, 13 countries remained represented, reflecting the global reach of the sport.

All 16 fourth-round matches are scheduled for today, and the feature battle will be five-time champion Roger Federer against Robin Soderling. Even though Federer is listed at -3000 to win, it won't be as easy as many think.

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Well that may be true on paper, but there are still other players out there who could give Federer a run for his money.

Federer, who is listed at a staggering -175 to win, could find Andy Murray (+275) in his path at some point.

These two players are clearly getting most of the attention as the tourney begins, but it will be Murray that will need to step up his game if he is to upset Federer.

Federer opened his Wimbledon with a routine 7-5, 6-3, 6-2 victory over Yen-hsun Lu.

Murray launched his assault on a maiden grand slam title with a 7-5, 6-7, 6-3, 6-4 victory on Centre Court over Robert Kendrick.

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After leading the first two sets, the matchup between the game's greatest player and sixth-ranked Murray was postponed by rain until Sunday afternoon.

When the game picked up it appeared as though Nadal would take command. When Murray repeatedly failed to capitalize on break point potential in the second game of a fourth set, it looked as though Nadal could hold on and steal a win in a fifth set.

But for Rafael Nadal a comeback was not to be as Murray quickly regained composure and finished off the four-set victory.

With the victory 21-year-old Murray has earned his first trip to a Grand Slam final and will face the four-time defending champion in Federer.

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Heading into the rain delay, sixth-ranked Andy Murray of Scotland leads world number one Rafael Nadal 6-2, 7-6, 2-3 as they fight for a chance to take on Roger Federer in the US Open Final.

A worn down Nadal fell behind early and has struggled to earn his way back as he looks to add to an impressive 2008 campaign.

With victories at the French Open, Wimbledon and most recently the Beijing Olympics, fatigue may have been an issue early for the 22-year-old Spaniard.

Murray, on the other hand, has played well in his first career grand slam semifinal.

The jury is still out on who exactly the rain delay will benefit, but with an extra night to rest, Nadal may come back stronger while Murray starts feeling the pressure.

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After a four-set tilt with third-ranked Novak Djokovic, Federer will have the opportunity to defend a title that's been his for the past four years.

In a 6-3, 5-7, 7-5, 6-2 victory, Federer claimed the chance to fight in his third consecutive grand slam final.

Though Djokovic managed to steal the second set from the Olympic-champion Swede, Federer made short work of the 21-year-old down the stretch as the pressures of the game and the crowd appeared to weigh on.

In addition to his experience and poise, Federer used a 20-6 advantage in aces to help seal the deal.

With the win Saturday, Federer will take on the winner of Rafael Nadal and Andy Murray who are currently underway on the Louis Armstrong court in New York.

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On the schedule for today include number two-ranked Roger Federer, third-ranked Novak Djokovic and American power serving phenom Andy Roddick.

In the second match at the Arthur Ashe Stadium watch Federer, fresh off an Olympic gold medal, take on Radek Stepanek in his quest to reclaim tennis dominance after having been ousted from the number one spot by Rafael Nadal.

Meanwhile Djokovic will face 19-year-old Marin Cilic of Croatia as he looks to squeeze into the quarter-final round.

In one of the day's third matchups at Arthur Ashe, Roddick and Italian Andreas Seppi square off just days after the American dropped a set to Ernests Gulbis of Latvia in round two.

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Nadal's most recent win on Saturday came at the hands of Serbian 22-year-old Viktor Troicki. With the 6-4, 6-3, 6-0 decision under his belt Nadal will move on to American Sam Querrey in Round 4.

Leading up to the Saturday win Nadal took on Bjorn Pheau and Ryler De Heart.

Though Saturday marked the continued dominance of the Spanish Wimbledon champ, it also saw tennis legend Venus Williams in action as she earned her own trip to Round 4 in the women's bracket with a win over Alona Bondarenko.

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American hopes will rest on the shoulders of Andy Roddick, the hardcourt specialist who comes into the tourney as a 33/1 longshot. Following him is Russian Nikolay Davydenko (50/1) while David Ferrer and David Nalbandian are both at 66/1. If you'd like to play the field, you can do so at 25/1 in the Bodog Sportsbook today!

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