The Highs and Lows of the 2009 Tennis Season

The 2009 tennis season was a season tennis fans will never forget. This tennis season brought memories that will go down in tennis history, such as Serena Williams' problem at the US Open with the line judge among others.

This tennis season also brought us some new champions, some comebacks, some retirements, and some books that should have never been written.

Here are the highs and the lows of the 2009 ATP and WTA Season.

High—Juan Martin Del Potro Wins First Grand Slam

Del Potro shocked all tennis fans by beating Roger Federer in the 2009 US Open final; 3-6 7-6(7-5) 4-6 7-6(7-4) 6-2.

This season was by far the young Argentinian's best season of his young career. He also made it to the quarters of both the French and Australian Opens.

Del Potro is currently ranked at a career-high No. 5 spot.

Low—Anrde Agassi's New Book

Andre Agassi was one of the most beloved tennis stars of the 90's and 2000's.

Yet, when Agassi decided to write his new autobiography, Open, he let information out that he probably should not have, and he may have lost some of his fans as a result.

In Agassi's book, he mentions that his signature long locks were not his real hair, but actually a wig. He also admits to using crystal meth during the low point of his tennis career.

When this news came out, people all over the media and tennis worlds said that Agassi should give back all his trophies that he won.

Agassi claims that the crystal meth would only hinder his play and not help him.

High—The Return of Kim Clijsters

Kim Clijsters made her return to the WTA tour this year after two years of being retired due to injuries.

Clijsters made her return after having her first child and getting married.

Clijsters received Wild Cards at both the Cincinnati and Toronto US Open Series Tournaments. She was also later given a Wild Card in the US Open.

She shocked the tennis world by winning her first Grand Slam, back from retirement, defeating Caroline Wozniacki 7-5, 6-3 in the final.

Low—Serena Williams' Outburst at the U.S. Open

In arguably the most shocking part of the 2009 tennis season, In a match between Serena Williams and Kim Clijsters, Williams cursed and threatened a line judge after a call she did not believe was right.

Serena was given a point penalty and therefore she had lost the match because it was 40-30. Serena shook Clijsters' hand and left the court into the locker room.

After the match, Serena apologized to the line judge.

High—Roger Federer Breaking the Men's Grand Slam Singles Record

In what was the best match of this years' tennis season, and maybe the best tennis match ever, Roger Federer defeated Andy Roddick in an astonishing five-set match.

Federer defeated Roddick; 5-7, 7-6, 7-6, 3-6, 16-14. After the match, Federer put on a jacket made by Nike that featured the number 15, meaning he now had the record for Men's Grand Slam Singles trophies.

Former record-holder Pete Sampras was there to congratulate him. Before that match, it was arguable that he and Sampras were the best ever. Now, Federer stands alone as the best male tennis player ever.

Low—The Retirements of Marat Safin and Fabrice Santoro

The ATP lost two of its most entertaining players this season.

Fabrice Santoro, nicknamed "The Magician", has been playing in Grand Slams since 1989. Santoro has formeley been ranked 17th in singles and sixth in doubles.

Safin, a former No. 1 ranked player in the world and two-time Grand Slam champ, is retiring after playing since 1998 in Grand Slams.

Safin could have been one of the best players in men's tennis history if he was not such a hot-head on the court.

It will be interesting to see if Safin is inducted in to the International Tennis Hall of Fame.