Patriots to sign defensive tackle Scott Vallone

The Patriots are adding undrafted rookie defensive tackle Scott Vallone, Aaron Wilson of the Baltimore Sun reported Wednesday. Vallone (6-3, 275) played collegiately at Rutgers. His addition gives the Patriots nine former Scarlet Knights players on the roster, including six rookies. The 23-year-old Vallone was a four-year starter at defensive tackle (2009-2012). He was credited with…