CHARLOTTE (AP) -- The hits keep coming for the injury-plagued Panthers.

Carolina on Tuesday placed right tackle Jeff Otah on injured reserve and signed offensive lineman Rob Petitti. Otah tore the meniscus in his left knee Sunday against New England and becomes the 10th player to be lost for the season.

General manager Marty Hurney says Otah will undergo surgery. His loss means Carolina will be without both starting tackles from the start of the season. Jordan Gross broke his leg last month.

The 6-foot-6, 327-pound Petitti started all 16 games for Dallas as a rookie in 2005, but has in played only six games since with St. Louis and New Orleans.