Game on AM560 due to Blackhawks Minute Maid Park | 8:05 PM ET Carlos Zambrano, RHP (1-3, 6.12) Cubs (24-29) @ Felipe Paulino, RHP (0-7, 4.40) Astros (20-34) Cubs: This will be Zambrano's first start since April 20. The right-hander moved to the bullpen to make room in the rotation for Ted Lilly and also to give the team a potent setup pitcher. He was effective until May 14 against the Pirates, when he gave up three runs on four hits over one inning. Zambrano then said he wasn't comfortable in the role and wanted to go back to the rotation. Since that game against the Pirates, he has given up one hit over 4 1/3 scoreless innings. Big Z tuned up with a 73-pitch simulated game last Monday. In four starts, Zambrano was 1-2 with a 7.45 ERA. He's made 13 relief outings, including Saturday, when he needed just two pitches to get a double play and end the eighth against the Cardinals. Astros: Paulino has started the season with seven consecutive losses, but it's not all because he's not pitching well. He has a respectable 4.40 ERA and has had the worst run support in the National League this season. Witness his most recent start Sunday against the Reds, in which Paulino threw eight scoreless innings and gave up four hits, four walks and struck out five batters. The game was tied at 0-0 before the Astros won in extra innings. In his Past three starts, he's allowed four earned runs in 20 innings. He's given up just two home runs all year in 59 1/3 innings, but walks continue to be a problem (34). Paulino faced the Cubs on April 16 in Chicago and took the loss, giving up six hits and five earned runs in six innings. He's 0-2 with a 7.82 ERA in three career games against the Cubs, including two starts.