Mayo -- who tore his patellar tendon last October -- is not yet 100 percent, ESPN.com reports. Mayo, who recorded 53 tackles in six games for the Patriots last season, has yet to see the field through the team's OTAs and minicamp and it's unclear how much work he'll be able to see once training camp starts. Once Mayo reestablishes his health, however, the 29-year-old is in line start at linebacker for the Pats, along with Dont'a Hightower and Jamie Collins.