Players were already heads-up with the cards face up.
Opponent: 9♠9♦
Matthew Lerner: K♠9♣
Lerner was looking to improve to knock out his opponent but the 6♥10♦5♣ flop kept his opponent ahead.
Lerner hit a king K♣ on the turn to take him into the lead, and the 7♣ river sealed him the pot.