File this one under C for curveball.

The Boston Celtics shocked the Miami Heat on Saturday night — OK, they shocked the entire world on Saturday night — beating the two-time defending champions in their own home.

With .6 seconds remaining on the clock, Jeff Green launched an off-balance 3-pointer from the corner and buried the shot with time expiring, giving the Celtics the improbable win and their third in a row.

Check out the miraculous play in the video below.