Jae Seo, RHP (2-4, 5.61)
Seo last pitched June 23 against the Pirates when he gave up four runs on five hits in four innings. He is 0-1 against with a 20.25 ERA in one start against the Nationals this season. In 13 career appearances against Washington, Seo is 2-7 with a 5.43 ERA.VSRamon Ortiz, RHP (5-6, 5.18 )
Ortiz allowed only four hits over 6 2/3 innings against Toronto in his last outing, but two of those hits were home runs that led to a 6-0 Washington loss. Ortiz is 0-2 with a 6.62 ERA over his last three starts. He is 5-1 with a 4.10 ERA in nine career starts against Tampa Bay. The five wins are Ortiz's second-highest career total against any team.