2010 Chachi #20 David Herndon

As a Rule 5 selection from the Los Angeles Angels, David Herndon must remain on the Phillies' roster for the entire 2010 season, or the team has to offer him back to the Angels. He's roughly to the half-way point of completing this requirement, and he's been used so far this season in low-pressure relief situations.

Herndon's rookie cards have popped up in this year's Topps and Bowman offerings. He's also card #20 in the 2010 Chachi set.

Phillies debut: April 5, 2010
How acquired: Selected from the Los Angeles Angels in the Rule 5 draft.

Others wearing #57 in the 2000s: Nelson Figueroa 2001, Ryan Madson 2003, Amaury Telemaco 2004-2005, Antonio Alfonseca 2007, Rudy Seanez 2008, Jack Taschner 2009

Pictured: Spring Training, February 21, 2010