Mets add Patterson, assign to Buffalo

SAN DIEGO -- Right-hander Scott Patterson has joined the Mets organization and been assigned to Triple-A Buffalo.

Patterson, 33, made a combined four relief appearances for the Yankees and Padres in 2008.

He had been 1-3 with a 2.89 ERA in 26 relief appearances for Triple-A Tacoma this season. He had asked for his release from the Mariners organization.