"That was a good at-bat [Saturday] night," Francona said. "I think he's come as advertised. … The game is not going too fast for him. He played a lot of winter ball last year and those games are pretty high intensity, so I think that's a big part of some of our comfort level.
"You worry sometimes about bringing up a young player and if they have of a tough time. … If anything, we've seen it's to the contrary [with Ramirez]."
Francona added that Ramirez's speed and style of play helps in September, when some everyday players may be a little run down.
"He gives you a pretty good effort, and he gets after it," Francona said. "This time of year, he's got an extra step where maybe some guys are dragging a little bit."
Manny Randhawa is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.