The New England Patriots leading tackler, linebacker Jerod Mayo, has been place on the NFL Injured Reserve List ending his season. The Patriots captain had 55 tackles before getting injured Sunday in the New Orleans game.

Media reports from Boston and NFL sources says Mayo had surgery for a torn pectoral muscle. The team is not commenting on that, only saying that he has been place on the IR.

Mayo's season ending injury is the second major loss to the Patriots defense. Lineman VInce Wilfolk went down with a season ending achilles injury two weeks ago.

Here is the official press release by the Patriots...

FOXBOROUGH, Mass. – The New England Patriots announced that they have re-signed DT Andre Neblett to the 53-man roster, placed LB

Jerod Mayoon injured reserve and signed CB Travis Howard to the practice squad.Mayo suffered his injury in the fourth quarter of the victory over New Orleans last Sunday.Neblett, 25, was signed by the Patriots on Wednesday, Oct. 9, and released last Saturday to make room for DL Marcus Forston. He is a veteran of three NFL seasons with the Carolina Panthers after joining the team as a rookie free agent out of Temple in in 2010. The 6-foot, 310-pounder signed with Tampa Bay as an unrestricted free agent on May 6, 2013, but was released by the Buccaneers on Aug. 31, 2013. Neblett has played in 30 NFL games with seven starts during his three seasons with the Panthers and has registered 28 total tackles, three sacks and two fumble recoveries. Last season, he played in 11 games with two starts and recorded 11 tackles and a ½ sack.Howard, 23, was originally signed by the Houston Texans as a rookie free agent out of Ohio State on May 10, 2013. The 6-foot-1, 197-pounder, was released by Houston on Aug. 27, 2013. He started every game as a junior and senior at Ohio State and totaled 81 tackles, six interceptions and 11 passes defensed during that time