It is in the rules. With a runner on first, if the fielder drops it intentionally, it is an intentional drop. Dead ball. The only way he can turn a double play is if the batter doesn't run, and he lets it hit the ground before it touches his glove.What about a popup (not infield fly) that the fielder makesit look like he will catch and then lets drop and get a double play? Is that cheating because there was deception?
As long as it's not against the rules, I have no problem with pretty much anything unless it puts another player at an unusual risk for injury. This did not. No problem. Now, what Pierzinski did the other day -- THAT is bush league. You can injure a guy with that. Likme I said, if you sldie into 2nd and try to hurt the infielder...bush league.