Report: Patriots have tryout for DT Spencer Johnson

Veteran defensive tackle Spencer Johnson tried out for the Patriots on Thursday, Field Yates of ESPNBoston.com reported. Johnson, 31, spent the last five seasons with Buffalo. He notched 19 tackles and two sacks in 14 games as a reserve in 2012. The Patriots have made some changes at defensive tackle in the offseason, adding ex-Raider Tommy…