Except when it's not. With 7,000 in the pot preflop, a player bet 6,000 into T6 pro Michael Guzzardi on a flop. Guzzardi raised to 25,000, enough to put the other player all in. The other player did call all in, and the hands were opened.
Guzzardi:
Opponent:
The turn and river bricked out, knocking out Guzzardi's opponent and increasing Guzzardi's stack to 73,000.