Rockies' bullpen collapses in 5-4 loss to Oakland A's

Spoiler alert: The Rockies' bullpen is about as volatile as Colorado's May weather. On a night when shortstop Ezequiel Tovar had the first two-homer game of his young career and Cal Quantrill made another terrific start, the Rockies found a way to lose, 5-4, to the Athletics Tuesday night at the Oakland Coliseum. After a heartening seven-game winning streak, Colorado has now dropped four straight. Oakland snapped its eight-game losing streak.