Magic center Dwight Howard, Grizzlies forward Rudy Gay, and Knicks guard Nate Robinson will compete in the slam-dunk competition Feb. 14 during the NBA All-Star weekend festivities in Phoenix. Fans will pick the fourth competitor in an online vote, and will select one of three rookies: Bucks forward Joe Alexander, Trail Blazers forward Rudy Fernandez or Thunder guard Russell Westbrook. SOURCE ESPN