Thielbar is not on the Cubs' roster for their NL Wild Card Series against the Padres, Meghan Montemurro of the Chicago Tribune reports.
Thielbar carried a 60:18 K:BB over 50 regular-season innings, but he also had a 4.86 ERA and served up a whopping 11 home runs. The lefty could be under consideration for the NLDS roster, should the Cubs advance.