Alfonso Soriano hit a tying two-run homer in the eighth inning and Welington Castillo had a go-ahead double in the 10th, helping the Chicago Cubs rally from a four-run deficit in a 5-4 win over the Cincinnati Reds on Sunday that stopped a season-high, six-game losing streak.
Soriano singled in the seventh and scored Chicago's first run off Johnny Cueto on Luis Valbuena's two-out single.
Anthony Rizzo hit an RBI double against Logan Ondrusek in the eighth - his third double in two games - and Soriano followed with his fifth homer of the season and first since May 13, a 394-foot drive to left-center.
J.J. Hoover (0-4) walked Scott Hairston with two outs in the 10th, and Castillo followed with his double into the left-field corner.
Kevin Gregg (1-0) pitched 1 1-3 hitless innings, stopping the Reds' five-game winning streak.