Neither were immediately signed to a contract.
Anderson, 27, has 132 career tackles and 7.5 sacks with two forced fumbles.
McKnight has rushed for 502 career yards in three NFL seasons with 17 receptions for 177 yards.
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Aaron Wilson covers the Ravens for The Baltimore Sun.Follow @footballpost on Twitter for the latest news
This story originally appeared on Nationalfootballpost.com
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