I really like this match up here. Jeff Locke has been great at home posting a 2.64 ERA and he's really pitched quite well over his career against the Cardinals winning 2/3 of his starts against them. Carlos Martinez is having a career year right now, but I believe he will come back to earth his raw stats are not really as impressive as his misleading ERA. The Cardinals also struggle vs. LHP ranking 26th while scoring over a run less per 9 than they do against RHP. Pittsburgh's offense is much better with this match up and they have given Martinez problems. In 2 career starts he's allowed 11 ER in 11.1 IP. Look for the Pirates to take this game.