On Tuesday, LaHair will have to step aside to make room for Rizzo, who is taking over as the Cubs' everyday first baseman.
"It is what it is," LaHair said Monday. "He'll get the opportunity to play. He's a first baseman and that's the only position he plays. He's got a big bat, so we have to have him. I'm comfortable in the outfield and I just want to hit. As long as I'm in the lineup, I don't really care [where I play]."
LaHair has kept an eye on Rizzo's stats at Triple-A Iowa. Last year, LaHair led the Pacific Coast League with 38 home runs. Rizzo has hit 23 in 60 games with Iowa. But the two haven't kept in touch via text messages or phone calls.
"I'm up here playing first, he's down there playing first," said LaHair, who has started 50 games at first, but has been lifted against left-handed pitchers. "When he gets here, we'll mesh well and help each other out."
LaHair said Carlos Pena helped him last year when he was called up to the Cubs in September. He'll do the same for the 22-year-old infielder.
"We're teammates, friends, and we'll try to help each other out," LaHair said.