Yankees reliever David Robertson, who has not pitched since Wednesday due to nagging pain in the area around his left hamstring and knee, believes he'll be available for Tuesday's series opener in Colorado, the Newark Star-Ledger reports Sunday. 

"I don't think I'll need a bullpen to be ready to go," Robertson said before Sunday's game. "I'll probably just throw from flat ground, throw a couple off the mound and see how it feels. And if it feels good, I think I'd be available on Tuesday."