The Baltimore Ravens made a small flurry of roster moves Saturday, the most notable of which was placing left tackle Eugene Monroe on season-ending injured reserve.

Monroe's injured shoulder hasn't progressed in weeks, NFL Network's Ian Rapoport reported Friday, and the move to IR was expected.

In October 2013, the Ravens traded fourth- and fifth-round picks in the 2014 NFL Draft to the Jacksonville Jaguars to acquire Monroe. They gave him a five-year, $37.5-million deal the following offseason.

Monroe has battled numerous injuries since joining the Ravens and his future with the team appears to be in jeopardy. With the team careening toward a possible top-five selection in next spring's draft, general manager Ozzie Newsome may seek a long-term solution to protect Joe Flacco's blind side.

In corresponding roster moves made Saturday, the Ravens released offensive lineman Kaleb Johnson and promoted quarterback Bryn Renner and Super Bowl XLIX star wideout Chris Matthews to the active roster.