The move comes one day after McCown injured his left knee and ankle in a loss to Philadelphia in relief of struggling starter Jake Delhomme. McCown was wearing a protective boot on Monday.
Feeley, who was released by Philadelphia this month, provides a veteran presence behind Delhomme, who has committed 11 turnovers in his last two games.
Feeley is a nine-year veteran who was in his second stint in Philadelphia. He's also been with Miami and San Diego.
Copyright 2009 by The Associated Press