Nationals purchased the contracts of LHP Justin Jones, RHP Garrett Mock, 1B Josh Whitesell and OF Rogearvin Bernadina
Jones is the surprise here. Four years removed from his days as one of the Cubs’ top prospects, he had a 3.72 ERA in 121 innings in the Nats’ minor league system this year. Most of those came at Single-A Potomac. Mock is the best prospect in the group. Whitesell and Bernadina don’t currently project as major leaguers, but the Nationals still have little enough older talent in their system that they can afford to protect them for a year. 40-man roster spots will be at more of a premium in 2009 and 2010.