Imai (arm) will make his next rehab appearance Tuesday or Wednesday with Triple-A Sugar Land, Brian McTaggart of MLB.com reports.
The Japanese right-hander made his first rehab appearance with Double-A Corpus Christi on Tuesday, allowing five runs over two innings. Imai struggled to a 7.27 ERA and a 13:11 K:BB in his first three MLB starts before landing on the shelf, so he's likely to need another rehab start or two after next week's outing.