The Patriots signed Bethel to a contract Tuesday, Ian Rapoport of NFL Network reports.
Bethel was let go by the Ravens on Monday in order for them to gain a compensatory draft pick, and he found a new team quickly. Widely considered one of the best special team's players in the league, Bethel has tallied six tackles and a fumble recovery this season. He'll like assume a depth role on defense and will be a special teams mainstay for the Patriots.