ST. LOUIS (AP) – Juan Rivera homered and knocked in three runs and the Los Angeles Dodgers scored an early knockout of the St. Louis Cardinals for the second straight day, completing their first road sweep of the season with a 9-4 victory on Wednesday.  The Cardinals were outscored 24-7 in the Dodgers’ first three-game sweep in St. Louis since Aug. 20-22, 1993, and have dropped seven of nine overall. They failed to take advantage of a rare loss by NL Central-leading Milwaukee, remaining 10 games back with 32 to go.  Hiroki Kuroda (10-14) worked seven solid innings and A.J. Ellis hit his first career homer off of Jaime Garcia (10-7) to give the Dodgers a two-day total of six long balls. Matt Kemp had two singles and two RBIs and James Loney had three hits with a pair of doubles and an RBI.