Packers defensive end Mike Neal underwent knee surgery and will miss a substantial amount of time, head coach Mike McCarthy said on Wednesday.
The 2010 second-round draft pick out of Purdue has appeared in just two games during his career, registering three tackles and a sack/forced fumble.
With Neal sidelined, the Packers began the season with a 2-4-5 package, while 2009 sixth-round choice Jarius Wynn saw time at defensive end when the Packers used a three-man front. Wynn had four tackles and a sack against the Saints last Thursday night.