Cardinals starting pitcher Michael Wacha (2-1) turned in a decent outing but was not backed by enough run support as he suffered his first loss of the season Saturday night against the Mariners. The right-hander surrendered two runs on four hits and four walks while striking out seven over five innings of a 4-1 defeat.

Wacha has allowed only two runs over his last 24 2/3 innings of work. He is scheduled to make his next start Thursday at Colorado. He is 2-0 with a 3.21 ERA in four appearances (one start).