The Patriots have added a third tight end, signing former Cincinnati Bengals tight end Mitchell Wilcox. The 6-foot-4, 250-pounder, originally signed with Cincinnati on April 27, 2020, as a rookie free agent out of South Florida. He spent a part of the 2020 season on the practice squad before being signed to the 53-man roster on Jan. 1, 2020.  Wilcox played in 48 regular season games with the Cincinnati. He…