The Buffalo Bills signed defensive tackle Stefan Charles to the 53-man roster off of the Tennessee Titans' practice squad.
His addition comes one day after the Bills cut defensive tackle Jay Ross.
Charles spent the first eight weeks of the season on the Titans' practice squad.
A 6-foot-5, 323-pound defensive tackle, Charles entered the NFL as an undrafted free agent with the Titans this year.
A native of Oshawa, Ontario, Charles played in 20 games at the University of Regina and totaled 74 tackles with 9.5 sacks.
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Aaron Wilson covers the Ravens for The Baltimore Sun.
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