Never mind innings limits; the Yankees’ “Joba Rules” should have included extracurricular activities, such as trampoline jumping with one’s young son.

Joba Chamberlain, who missed much of 2011 due to injury, will not see any action this season after suffering an open dislocation of the ankle.

Hardball Talk’s Craig Calcaterra summed it up nicely: “This while trying to come back from Tommy John surgery. Just totally snakebit. Assuming snakes sit on trampolines, waiting to bite you.”

More here.