Like many teams, the Phillies are vulnerable when it comes to the bottom of their rotation. Philadelphia is in a tough spot today having to give Vince Velasquez a spot start at Colorado because normal starter Matt Moore is in COVID-19 protocol. 

Velasquez couldn't cut it as a starter before. He's been in long relief. I don't like his chances here against German Marquez. 

Marquez has been solid with a 3.57 ERA while pitching into the sixth inning in three of his four starts this season. He knows how to pitch effectively at Coors Field, too. 

The Rockies' bats are heating up. Colorado has scored 6 or more runs in three of its last four games. Velasquez has a 9.00 ERA. Velasquez has a career 4.91 ERA versus the Rockies in seven appearances. 

Philadelphia has lost in seven of its last eight games at Coors Field. The Phillies also are playing shorthanded. They are down several arms in their bullpen with Archie Bradley and Jose Alvarado out and have a middle infield shortage with Jean Segura on the IL with a strained quad and Didi Gregorius questionable due to an elbow injury.