[CTbiker105]

Possible? Yes. Worth the risk? Probably not. While 2-ball autos generally risk violating only the first portion of G13, "During AUTO, ROBOTS may not enter the volume above the MIDLINE," attempting to block a ball from being grabbed by a 2-ball bot would run the risk of drawing two fouls, as G13 goes on to state:

"If contact is made with an opponent ROBOT beyond the MIDLINE (either direct contact or transitive contact through a BOULDER), an additional FOUL is assessed and the opponent ROBOT is immediately awarded the CROSSING of the closest DEFENSE from the point of contact."

Unless your blocking strategy is extremely precise and consistent, you're most likely going to hurt your own alliance by potentially drawing up to 2 fouls.

That being said, as a team with a 2-ball auto, I am interested to see what strategies, if any, teams employ to prevent it or mitigate its effects.