Scherzer (shoulder) will no longer make a rehab start Friday with Double-A Frisco as previously scheduled, Jeff Wilson of RangersToday.com reports.
Scherzer has been on the shelf since Aug. 2 with right shoulder fatigue, but he had received the green light to begin a rehab assignment after he initially responded well to a nerve injection administered a little under two weeks ago. The right-hander seems to have since suffered a setback this week, so the Rangers will at least temporarily press pause on the rehab assignment. He's now without a clear timeline for a return from the 15-day injured list, but the Rangers could shed more light on Scherzer's condition and his next steps over the weekend.