Chargers Vincent Brown looks on during practice. — K.C. Alfred / U-T San Diego
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Tuesday is Philip Rivers' 34th birthday.
He could receive a new wide receiver, one with whom he is familiar.
Vincent Brown and Austin Pettis both are working out for the team Tuesday, and one may be signed with the intention of playing Sunday in Kansas City, sources said. Brown, a 2011 third-round pick from San Diego State, showed flashes of being an impact player before a broken ankle in a 2012 exhibition game derailed his development.