The Chicago Bears placed cornerback Kelvin Hayden on injured reserve and signed long snapper Brandon Hartson to a three-year contract. They also signed Derrick Martin to a one-year deal while waiving fellow safety Cyhl Quarles.
Hayden is lost for the season because of a torn hamstring. He will undergo surgery to repair the damage, the team announced. The eight-year veteran had signed a one-year contract with the Bears during the offseason.
Hayden was used primarily as the Bears' nickel back last year. He had one interception and 37 tackles and started one game. Hayden was expected to see increased action this year.
Hartson handled long snapping duties for four seasons (2009-12) at the University of Houston. He earned All-Conference USA second team honors his senior season.
The 5-10, 198-pound Martin has appeared in 66 career games over seven seasons, spending time with Baltimore, Green Bay, the New York Giants and New England.
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