The Ravens continued to tinker with the back end of their roster Monday, signing two players who participated in last week's rookie minicamp on a tryout basis while waiving two others. They added former Rutgers wide receiver-return specialist Janarion Grant and ex-Shepherd defensive end Myles Humphrey. To make room on their roster for them, they waived fullback Ricky Ortiz and rookie inside linebacker Mason McKenrick. Ortiz, a member of the team's 2017 undrafted free-agent class, spent much of last season on the practice squad. McKenrick was signed late last week after he went undrafted out of John Carroll University. Grant is Rutgers' all-time leader in kickoff-return yardage (2,857) and is fourth all-time in punt-return yardage (588). He tied an NCAA record with eight combined return scores, five off kickoffs and three on punts. Humphrey, an Upper Marlboro native, was the Mountain East Conference defensive player of the year last season. In 11 games, he had 13 sacks, 201/2 tackles for loss and 59 tackles.