Roger Federer Vs. Novak Djokovic: LIVE UPDATES From U.S. Open Semifinal

After the lashing rains and the helter-skelter rush to make up the matches that confused both the viewing and playing experience of the 2011 U.S. Open, we've got a pairing today that is worth stopping to appreciate. Roger Federer is facing Novak Djokovic in one of the men's semifinals.

Having recently celebrated his 30th birthday, Federer looked merely like one of the best players in the world this year as opposed to the greatest of all time. On the other hand, Djokovic made a leap up from just being one of the top players in the world and is making a bid for the best year in modern tennis.He enters this match at 62-2 and this will likely be his toughest test as he chases down John McEnroe's 1984 mark. This match will go a long way toward deciding precisely what kind of year it will have been for each.

Stay right here for live updates and commentary throughout the match. Send messages to @HuffPostSports if you'd like to join.

We've enlisted our partners at Tennisearth.com to supply point-by-point commentary. Please credit them for all the insightful analysis. But rest assured that all of the non sequiturs, bemused comments about the television broadcast and philosophical questions about the relative hotness of the two players involved belong to us and to you. Well, it's possible that some of the critical comments about the television analysts could be coming from Andy Roddick, but you get the point. For more on-point match coverage, check out Tennisearth.com.