This weekend, much of the attention of the sports world will be in Los Angeles, California for NBA All Star Weekend.  NBA Commissioner David Stern has already expressed his concern over the trade rumors surrounding Carmelo Anthony. For months, the Nuggets star and potential free agent has been rumored to be on his way out of Denver. New York, New Jersey, and Los Angeles have all been mentioned as potential destinations. Even Magic superstar Dwight Howard's future has come into question, sparking this response from the commish to Fanhouse.com's Sam Amick and Chris Tomasson. "Poor Dwight Howard. He's out there playing his head off and the media is, 'Oh, where's he going next?' What is that all about? It's ridiculous."  Instead of worrying about Melo and Howard's future, Stern should be focused on trying to avert a potential lockout. The collective bargaining agreement ends on June 30th, and many people believe the NBA's potential labor dispute is even worse than the NFL. Can the NBA and NFL afford a potential work stoppage?  It took baseball four years to recover from the damage of the 1994 players strike, and the NHL has never fully recovered from its lockout that cancelled the 2005 Stanley Cup.