Boston Celtics star point guard Kemba Walker is already putting on a show against the New York Knicks on Sunday afternoon at Madison Square Garden.

Just a few minutes into the game, Walker finished a ridiculous reverse layup while appearing to take a bit of contact on the break:

Later in the opening quarter, Walker crossed up Frank Ntilikina and finished in traffic:

Ntilikina is a terrific defender, but he was no match for Walker's killer crossover, which is one of the best in the NBA.

Walker and the Celtics entered Sunday's game with a record of 13-5. The point guard boasted averages of 21.9 points, 4.7 rebounds and 4.7 assists while shooting 40.6% from the field and 38.9% from 3-point range.

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