Blake Treinen pitched four scoreless innings after relieving an injured Joe Ross against the Tigers on Sunday.
Starting in place of an injured Bronson Arroyo, Blake Treinen struck out four in two scoreless innings against the Marlins on Wednesday.
Blake Treinen started and threw two scoreless innings in the Nationals' 5-2 victory over the Cardinals on Sunday.
Nationals recalled RHP Blake Treinen from Triple-A Syracuse.
Nationals optioned RHP Blake Treinen to Triple-A Syracuse.
Blake Treinen fanned two in a perfect inning Wednesday against the Nationals.
Blake Treinen is up to 4 1/3 scoreless innings this spring after retiring all three batters he faced Saturday.
Blake Treinen surrendered four runs and eight hits in 4 1/3 innings Thursday in a no-decision against the Mets.
Blake Treinen shut the Braves out over five innings but got a no-decision as the Nationals suffered a loss on Wednesday.
Blake Treinen will make a spot start on Wednesday against the Braves.
Blake Treinen has been placed on the 7-day disabled list with Triple-A Syracuse.