Nationals second baseman Danny Espinosa batted  just .223 left-handed last year, well below his .283 average from the right side. Spotting  a loop in Espinosa's swing, utility man Mark DeRosa suggested a drill that has helped  the switch-hitter  find a comfortable path for his bat. (Associated Press)

Nationals second baseman Danny Espinosa batted just .223 left-handed last year, well below his .283 average from the right side. Spotting a loop in Espinosa's swing, utility man Mark DeRosa suggested a drill that has helped the switch-hitter find a comfortable path for his bat. (Associated Press)