ST. LOUIS (AP) – Clayton Kershaw won his National League-leading 16th game and Rod Barajas homered twice in the Los Angeles Dodgers’ 13-2 victory over the fast-fading St. Louis Cardinals.  Kyle Lohse (11-8) was rocked for a season-worst eight runs in three innings, an impossible deficit against the 23-year-old Kershaw, who struck out eight in six scoreless innings. The Cardinals have lost six of eight and dropped a season-high 10 games behind the NL Central-leading Brewers.  Matt Kemp hit a three-run homer in the first and Barajas had a solo homer in the third and three-run shot in the fifth for his 11th multihomer game, also giving him four in five games.