Serena Williams is on track to win her fourth US Open title and no one in her path has shown the same domination.

The Mavericks, Trail Blazers, Wizards and Raptors have made significant changes to their rosters. But we will have to wait and see if those changes are going to help team chemistry or ruin it.

Franklin is set to fight in his second 195-pound match, this time against “The Phenom” Vitor Belfort. UFC president Dana White should really consider adding a 195-pound weight class.

Barring any head butts, the Calderon-Mayol fight should produce all-out action and drama. Can Mayol be the first man to defeat the slippery WBO light flyweight champion Ivan Calderon?

Can Manchester United defend their title for a fourth consecutive time without Cristiano Ronaldo? Or will Arsenal or Chelsea dethrone the champs? Get ready for an exciting season of the Barclays Premier League.

MLB is headed for crunch time. Teams continue to build momentum towards the post-season. The Yankees have been on fire lately but the Red Sox are not far behind them in the AL East. The Giants, Braves, Phillies and Rangers are ready to make noise in the post-season.

Federer will be gunning for his sixth straight US Open title. Can Roddick, Nadal, Djokovic or even Blake stop the dominance of Roger Federer at the US Open?

The NBA title contenders have revamped their line-up. But don’t underestimate other NBA teams that upgraded their rosters. Next season also features a race to five titles featuring Bryant, O’Neal and Duncan.

There are a lot of favorites to win the PGA Championship this year. Pedraig Harrington will return to defend the title; Phil Mickelson will play for his second PGA Championship while Tiger Woods gets a chance to win the last major of the year.

Can the Yankees continue their hot streak? Can the Red Sox take back control of the AL East? Can the Giants show consistency? So many questions surrounding baseball. One thing’s for sure, only one team can win in October.