Rohr Doesn't Believe The Tale of Duval

We join the action on a flop of [5d] [5c] [4s] and Jason Duval has just check-raised Jean Philippe Rohr. The bet is 1,700 and Rohr has to pay 1,100 more if he wishes to proceed to the turn. The Frenchman studies Duval hard before he does make that call. The turn is the [2d], Duval bets 2,100 and Rohr makes the call. This pot is getting pretty tasty and Duval only has around 9,000 behind. The river is the [Kd] and both players check. Duval shows [Js] [7s] for the ball of fluff and Rohr shows pocket fours.

Rohr ~ 29,000
Duval ~ 9,000