Tanner Roark was a 25th Round pick in the 2008 Draft by the Texas Rangers, acquired by the Washington Nationals along with right-hander Ryan Tatusko in a July 2010 trade that sent Cristian Guzman to the Rangers.
Nats’ GM Mike Rizzo described Roark as an organization success story in an MLB Network Radio interview in 2014, explaining that the Nationals’, “professional scouts, Jay Robertson in particular, and our scouting department identified him in a trade that we made a while back. It was a low-level trade with Cristian Guzman and got ourselves two good arms that we really liked and player development has really allowed this kid to step to the next level.