John Jaso is not in the Rays lineup today. Joey Butler takes over in left field and bats fifth as the Rays lose the DH spot in Philadelphia.
The Rays face Phillies lefty Adam Morgan today. Morgan has a 3.91 ERA but a much worse 5.76 FIP. Butler has an above average .340 wOBA on the season and 0.74 nERD. His wOBA goes up slightly against lefties to .342.
Source: Baseball Press