Frazier, who has filled in well for both first baseman Joey Votto and third baseman Scott Rolen, entered Tuesday batting .280 with 14 home runs and 48 RBIs. He was leading NL rookies in triples (five), slugging percentage (.528) and RBIs and was second in homers and third in total bases.
"I'd be lying if I said I don't look at it, but I do. It's part of the game," Frazier said. "I understand there is a chance. But at the same time, it's my role. I have to know my role playing and I've got to understand that we have to win and get to the playoffs. You play the team game. I learned at a young age that all of that individual stuff will take care of itself."
Besides Harper, another strong NL Rookie of the Year contender is D-Backs lefty starter Wade Miley. Other possible candidates are Brewers right-handed starter Mike Fiers, Padres first baseman Yonder Alonso and Frazier's Reds teammate, shortstop Zack Cozart.