This last U.S. Open was both entertaining and dramatic. Kim Clijsters and Juan Martin del Potro, both underdogs, captured the Grand Slam championship in their respective competitions. Getting the most press, however, was Serena Williams’ tirade against a lineswoman. (Serena was later fined $10,000.) Tennis had been fairly stable the past few years in terms of competition, top players, and sportsmanship. As of the U.S. Open, however, that sentiment is changing:

– Roger Federer, of all people, was docked $1,500 for using profanity while arguing with the chair umpire open during the men’s final. Was the expletive in Swiss-German?

– Led by Radek Stepanek and Tomas Berdych, the Czech Republic have reached their first Davis Cup final in 29 years after beating Marin Cilic and Lovro Zovko of Croatia in doubles.

– Spain also advanced into the Davis Cup finals, only without the services of Rafael Nadal. Spain owes a big thank you to Feliciano Lopez and Tommy Robredo. To his credit, Nadal is still suffering from abdominal pain.

– Can you believe Juan Martin del Potro is only the seventh male not named Roger Federer or Rafael Nadal to win a Grand Slam in the last seven years? Crazy. The others were Andre Agassi, Gaston Gaudio, Juan Carlos Ferrero, Marat Safin, Andy Roddick, and Novak Djokovic. In breaking it down that means, between those 28 Grand Slams, only nine champions have been crowned.

Per Yahoo! Sports…

Argentine Juan Martin del Potro beat five-times defending champion Roger Federer 3-6 7-6 4-6 7-6 6-2 on Monday to win his first U.S. Open title.

First and foremost, I want to commend Novak Djokovic for giving it his all. He played an incredible match, neck and neck with Federer in every set. However, while Djokovic was in top form, he’s no Roger Federer. Neither made many mistakes, earning points with well-placed shots after volleys rather than relying on aces.

After defeating Djokovic 7-6 7-5 7-5, Federer is now one match away from capturing his sixth consecutive U.S. Open Championship and sixteenth overall Grand Slam. He will face Juan Martin del Potro, the 20 year-old Argentine who defeated Rafael Nadal in straight sets earlier today. Del Potro has never made it to a Grand Slam final; Federer has been in 17 of the last 18. Who do you think is the favorite?

Djokovic and Federer provided several entertaining and clever drop shots, lobs, and lengthy volleys. Fed’s final winner in the twelfth game of the third set was just an extension of his dominance at this Grand Slam. But it was during the second to last point, seen in the video below, that caused Arthur Ashe Stadium to gasp in amazement. It’s the shot Federer is calling the greatest of his career.