Robinson, released by the Bears two weeks ago, is entering his seventh year in the NFL and has 187 career receptions for 2,695 yards and 20 touchdowns in 28 starts.
Robinson had 21 catches last season after missing all of 2001 following knee surgery.
"Our experiences with players coming off surgery and the second year they seem to be able to get back to the level of performance they were playing at before the surgery," Ravens general manager Ozzie Newsome said. "If that is the case with Marcus, this will be a really nice addition for us."
The Associated Press News Service
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