10 key players for NL's second half

Dexter Fowler, Buster Posey, Carlos Beltran and others who must shine

Updated: July 16, 2010, 1:14 PM ET
By R.J. Anderson | FanGraphs
Getty ImagesUntil the Giants acquire another bat, they'll need Buster Posey to be 'the man' on offense.

As the second half begins -- nice win by Tim Lincecum Thursday night -- FanGraphs is looking at 10 players who are essential to the stretch run in each league; on Thursday we focused on the AL. What follows is the National League edition.