Josh Johnson (shoulder) threw a free and easy bullpen session Wednesday in Marlins camp. It was Johnson's first mound session since arriving at the Marlins' complex in Jupiter, Florida. "My arm felt great," he told reporters. "It still won't feel the way I want it to until I throw some more 'pens. The strengthening keeps going up with the more I'm throwing." Johnson is trying to get over the shoulder problems that plagued him last year. He's an ace when healthy.