Brock originally entered the NFL as an undrafted free agent with the Carolina Panthers in 2009. He first joined the Chiefs in February after stints in Buffalo, Oakland, Dallas, Chicago, Pittsburgh and with the New York Jets.
He has played in two games, both with the Bills in 2011, recording two receptions for 27 yards (13.5 avg.). Since entering the NFL, Brock has primarily served as a practice squad member since going undrafted out of Rutgers.
McDougald originally joined Chiefs as a rookie free agent in May. He was active for one game, but didn't play He played collegiately at Kansas.
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Aaron Wilson covers the Ravens for The Baltimore Sun.
This story originally appeared on Nationalfootballpost.com
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