Today's top sports stories:

A flurry of activity kicked off the NFL free-agency period, with the Eagles releasing cornerback Nnamdi Asomugha, the big prize of the 2011 off-season, and the Bills releasing their quarterback, Ryan Fitzpatrick. [USA Today]

Dwight Howard, who forced his way out of Orlando this past off-season, will return to his former home of eight years Tuesday night, as his Lakers face the Magic. Howard claims he isn't nervous, but his teammate, Steve Nash, thinks otherwise. [ESPN L.A.]

The Dominican Republic roared back from a 4-0 deficit to beat Italy, 5-4, and maintain their perfect record at the World Baseball Classic. [HuffPo]

Penn State coughed up $8.1 million for the so-called Freeh Report, which detailed exactly what happened during the Jerry Sandusky scandal. That figure is part of a total of $41 the university has spent so far on related costs. [Deadspin]

A golfer in Illinois was just minding his own business, standing in the middle of the fairway, when a giant, 18-foot sinkhole opened up beneath him, swallowing him whole. "Then, all of a sudden, before I knew it, I was underground," he said. [Yahoo]