How it happened: Edwin Jackson, who was seeking his first victory as a Cub in his seventh start, allowed three runs in the fourth. Todd Frazier plated two with a base hit. The Reds’ Mat Latos got into a jam in the fourth, but the Cubs left the bases loaded. The Reds added a fourth run in the fifth, using a stolen base, error and sacrifice fly. In the Cubs’ fifth, a collision between Reds outfielder Shin Soo Choo and second baseman Brandon Phillips allowed Anthony Rizzo and Starlin Castro to score on Alfonso Soriano's pop double. Soriano came home on a Nate Schierholtz base hit. Cincinnati scored twice more off of reliever Shawn Camp in the seventh. Rizzo drove in a run for the Cubs in the seventh inning on a groundout and the Reds tacked on their last run in the eighth.
What it means: Chicago was swept by the Reds and dropped nine games behind first-place St Louis in the Central division. The Cubs have lost six of their last eight games and four straight. Jackson is 0-5 with a 6.39 ERA after pitching five innings on Sunday.
Outside the box: Catcher Welington Castillo is day to day after taking a pitch off of his ankle in Saturdays game. … Reliever Kyuji Fujikawa started a rehab assignment at Triple-A Iowa on Sunday. He threw one 21-pitch inning, allowing one walk and striking out two. His second appearance should be Tuesday or Wednesday and may come at Double-A Tennessee since Iowa is going on a west coast road trip. Fujikawa was placed on the DL April 13 with a strained right forearm. … Matt Garza will make his second minor league rehab start at Iowa Monday evening. Garza is rehabbing a strained muscle on his left side. Garza missed the last two months of the 2012 season with elbow soreness.
Up next: The Cubs play the Texas Rangers on Monday night in a makeup of an April 10 cancellation. The Cubs send former Ranger Scott Feldman (2-3, 3.34 ERA) against Nick Tepesch (2-2, 3.54) in a 7:05 CT start at Wrigley Field.