VIDEO: Marlins' Bour sinks Casilla, Giants with walk-off blast

San Francisco Giants closer Santiago Casilla didn't allow a run last month. Over nine stellar appearances in June, the 34-year-old held opponents to a measly .087 batting average while notching eight strikeouts in 7 1/3 innings, collecting five saves in as many chances.

July, however, is a different story.

On Wednesday evening, Casilla's streak of scoreless innings ended in inglorious fashion when the veteran right-hander surrendered a three-run, walk-off home run to Justin Bour, whose second homer in as many days lifted the Miami Marlins to a 6-5 victory.

(Courtesy: MLB.com)

"It felt good to get the win," Bour told Shandel Richardson of the Miami Sun-Sentinel. "I felt good the last couple of days. As long as I'm hitting the ball hard, I'm happy."