There was all in action after a 

flop between Merritt Kuhn from the cutoff and Raymond Mancini from the small blind, with Kuhn holding 19,700,000 effective.
Merritt Kuhn: 

Raymond Mancini: 

Both players rolled over a set with Kuhn holding the better one as the
turn, and
river secured his massive double to take the chip lead.
Merritt Kuhn - 42,000,000
Raymond Mancini - 8,000,000