Step 1

4 man cup set up. Notice how the cup is in a C shape (not L)

Step 2

Offense very often will swing the disc

Step 3

When the disc moves to the sideline, it is time to trap the throw. Notice #1 actually moves behind the thrower slightly to prevent an easy swing back to the middle. #2 takes away IO swing, #3 takes away the middle, and #4 takes away the straight pass

Step 4

If 3 can get swing back to middle.

Step 5

It is important that the cup doesn't over pursue. While the disc is in the middle it is most dangerous, and the cup should play less aggressively by taking away more space in front of the thrower.

Step 6

Swing continues

Step 7

Force will now trap sideline again, similar to the one before.