NFC East

Source: LB Myles Jack to retire after a brief Eagles training camp opportunity

Exactly two weeks after signing with the Eagles, 27-year-old linebacker Myles Jack is retiring from football, according to a league source confirming an NFL Network report. Jack signed a one-year deal to join the linebacker-needy Eagles midway through training camp and worked in with the first-team defense in short order. The former first-round pick played six years for the Jacksonville Jaguars and spent last season with the Steelers, logging 104 total tackles for Pittsburgh. The Eagles also signed veteran linebacker Zach Cunningham the same day as Jack, although the former Texans and Titans l…