Blake Treinen has not pitched in six days, and for the Nationals most heavily worked reliever, that is an eternity.
Washington's bullpen, which was better as the team won in May, showed its inexperience again this road trip.
After Doug Fister went only two innings, Treinen pitched much longer than he had all season.
The rookie left-hander and three other Nationals relievers combined for an impressive showing that kept Washington in Tuesday night's game until the end.
Known for a powerful sinking fastball, Treinen is honing his slider, which complemented the sinker well this weekend.
The powerful right-hander got his first setup chance Wednesday, and threw a scoreless eighth.
The first starting lineup of the spring training season is here for your perusal.
For the second straight spring, big right-hander Blake Treinen's power sinker and do-it-all attitude are making a big impression.
The Nationals have loaded up their rotation and solidified their infield. What comes now?
With their bullpen faltering for the first time this year, the Nationals will add Blake Treinen and option Aaron Barrett.