At times, Rosario, 23, has excelled in limited playing time. He has thrown out five of the 11 runners who have tried to steal against him. But he entered Tuesday -- he didn't start, but is expected to start Wednesday against the Dodgers -- on an 0-for-11 slump, with some of the over-aggressiveness that he displayed in a brief callup last season recurring. Still, he'd rather be struggling here than thriving in Triple-A.
Rosario went into Tuesday with a .194 batting average and .212 on-base percentage in 33 plate appearances, with one home run and four RBIs.
"I got away from my rhythm, my tempo, and that's what I've worked on the last couple of days," Rosario said. "I feel better, more comfortable. I'm confident that I'll be good. I'm learning what I can from Ramon, and I'll be ready for my chance.
"My focus is more on my defense. I want to be comfortable with all the pitchers. But I can hit. I'll tell everybody. I can hit and I'm going to hit."
Rockies manager Jim Tracy said Rosario's playing time "is not perfect, but it's not bad, either," and working with Hernandez is a plus. But Tracy said Rosario needs to return his focus to swinging at pitches in the strike zone, which is how he impressed the Rockies during the spring.
Tracy said he would like for Rosario to take note of some of the Rockies' veteran hitters, who lately have been displaying the discipline Rosario needs.
"His strike zone has gotten too big, and he needs to rehone the focus and understand what makes him good as an offensive player," Tracy said. "Where he's at right now offensively resembles where he was at early in the spring.
"We grabbed a hold of him and told him we want him to be a hitter. In him being a hitter, the power, the home runs and all the stuff that he likes to do will show up. As we go along, if we continue to see this not adjusting back to what's going to make him good and make him a hitter at this level, if we have to sit down and reanalyze the situation, we'll do so."