SAN DIEGO -- Dan Haren is a rarity in Major League Baseball, a tall, right-handed pitcher whose fastball rarely brushes 89 mph.But he's also a survivor, someone who has been traded three times and twice signed as a free agent, at each stop picking something up to keep his career on track. A year ago at this time, he was fighting desperately to show the Washington Nationals he still had the stuff to fill out what they thought was a championship rotation.