Johnny Cueto tossed six-and-a-third innings of two-run ball as the Reds clipped the Cubs, 4-3, yesterday at Wrigley Field. Former Cub Sean Marshall registered his third save. Starlin Castro touched home twice for Chicago, which has lost seven-of-eight. Rodrigo Lopez suffered the setback out of the bullpen. The Northsiders open up a three-game series with the St. Louis Cardinals this evening at the Friendly Confines. Matt Garza gets the nod opposite Jaime Garcia in the opener.