Purdue and Iowa State have made it their personal mission to dominate nonconference play. Since the start of the 2021-22 season, Purdue and Iowa State are a combined 99-9 against nonleague foes. That's the best two marks in the sport, and they both exited November without an L on the ledger.

That makes Saturday's tilt between No. 1 Purdue and No. 10 Iowa State a paradox unlike any other: unstoppable force meets immovable object between two undefeated teams who are built on retention.

Purdue retained its Big Three of Braden Smith , Trey Kaufman-Renn and Fletcher Loyer . Iowa State retained its Big Three of Tamin Lipsey , Milan Momcilovic and Joshua Jefferson .

They play different ways, but Iowa State and Purdue share plenty of common ground.

Only one will emerge unblemis

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