It's not the first time Frazier has been called to duty.
The 26-year-old rookie has become the most versatile cog of the Reds' defense, making starts in three different defensive positions numerous times this season.
Frazier has seen the most action in his natural home at third base, but has also started five games at both first base and left field.
"I feel comfortable in all of them, so it doesn't really matter," said Frazier, who credited his younger playing days for his versatility. "Growing up I played a lot of different positions. I was ready for all the positions, and in high school I played many different positions."
In 56 games this season, Frazier has recorded 68 putouts and 60 assists in 131 total chances, chalking up just three errors.
With multiyear veterans at all three of his main positions, Frazier said he doesn't mind hopping around the field, and just enjoys being on it.
"If Brandon [Phillips] doesn't want to play second base, I'll play there too," Frazier joked.
It's not just on the field that Frazier has moved around.
He has also jumped around different spots in the batting order, hitting third, fifth, sixth, seventh, eighth and ninth at some point this season.
Frazier is one of three Reds rookies who has seen significant playing time this season, and is fourth on the team with a .274 batting average entering Saturday.