San Diego Padres closer Kirby Yates blew his first save Thursday against the Colorado Rockies. With two outs in the ninth, Yates surrendered a two-run homer to Ian Desmond to end the game in walk-off fashion. Since taking over closer duties in mid-July, he had converted all three of his previous save opportunities. Yates has scuffled in his last four appearances with a 9.82 ERA but still holds a sturdy 2.16 ERA, 0.98 WHIP and 12.6 K/9 this season. [...]