This is pretty deep in the tournament and the bb is 10,000 so there is quite a bit in every pot from blinds and antes before cards are even dealt.  Mike is on the button and limps in with K2h.  Negreanu fills in the sb with his offsuit connectors 78 and we all know Daniel loves playing these.  Mike Sexton in the BB checks his option and he should as it’s only 73o in his hand.

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Matusow vs Sexton - What a call.

A blocking bet is used when you think you might have the best hand after the river card, but you are not entirely sure.  A blocking is usually made against a single opponent, when you are out of position so that after the river card is turned over, you are first to act. Even though being out of position is normally a disadvantage, by putting in a blocking bet here, you are actually negating your opponent’s positional advantage

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Using a blocking bet to save you money.

One thing that can help prevent you from getting into too many expensive drawing situations, is to recognize, based on your four hole cards, what specific card you need to be in the community board.  This card may give you the nuts or at least a very, very strong hand.  One that you can play and eliminate opponents with.

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The "One Card" you need in Omaha High Low.