[markuisis]

I call, retards do this with sixes, he could have pair and a heart or even a lower flush. Obviously better flushes r in his range also and i wouldnt discount boats as dumb players slowplay sets on boards like this all the time (which means 57 is in his range also IMO). So i would call and c/c any non heart river barring some ridiculous amount and c/f any heart river.