The Rockies and Giants are both on five-game losing streaks, but the last-place Giants' streak runs much uglier as they've lost 12 of their last 13. German Marquez has been stellar for the Rockies all season. Colorado has won seven of his past eight starts, including his last three where he allowed just one earned run in each. The Giants have been a good luck tonic for Colorado this season; the Rockies are 10-1 against them. Rockies are the top play here.

Suddenly the Rockies' pitching has eroded. They've lost five consecutive games while yielding an average of 9.4 runs per game. Not much has gone right for the Giants either, as they've now lost 12 of 13 games. On Monday, look for starting pitcher Jeff Samardzija to pitch efficient enough to offset his poor 2-9 record. Grab the Giants here.