Wrobleski will start Sunday's series finale versus the Nationals, Bill Plunkett of The Orange County Register reports.
An earlier report indicated Wrobleski would be pitching behind an opener Sunday, but the southpaw now appears on track to make his 21st start of the season. Wrobleski had a great first half and was named to his first All-Star team, but he's had a rough go ever since, posting a 7.07 ERA, 1.43 WHIP and 31:9 K:BB while serving up 12 homers over 28 innings spanning six outings since the break. Sunday's contest may end up being just a spot start for Wrobleski, as Roki Sasaki (finger) could come off the injured list as soon as next week. Wrobleski is also likely to have a workload restriction in place after he hadn't started since Aug. 15 and made one two-inning, 36-pitch relief appearance in his lone outing since coming back from the IL on Sept. 1.