"He's still learning about himself as a hitter. ... But he definitely causes some problems when he gets on base," manager Davey Johnson says of Roger Bernadina, shown scoring against Colorado on July 8. (Associated Press)

"He's still learning about himself as a hitter. ... But he definitely causes some problems when he gets on base," manager Davey Johnson says of Roger Bernadina, shown scoring against Colorado on July 8. (Associated Press)