# Doug Polk Vs. Daniel Negreanu ($200/$400 HU): River Overbet & MDF Math

> Source: [Doug Polk Vs. Daniel Negreanu Heads-Up Grudge Match Solver Breakdown on Smarter.Poker](https://smarter.poker/learn/famous-hands/polk-vs-negreanu-heads-up-river-hero-call)

## Executive Summary
During Their 25,000-Hand $200/$400 Heads-Up Grudge Match, Doug Polk Demonstrated Pure Solver Unblocking Theory By Calling Down A River Scare-Card Barrel With Second Pair (Ts 9s) Because He Held Zero Club Blockers.

## Solver & Blocker Verdict
Textbook Unblockered Second-Pair Bluff-Catch Against Missed Club/Broadway Draws

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