[AtlUmpSteve]

Let's try ASA 8-4.F, where it says that after a ball has been touched by an infielder, interference must be intentional. There is no "step and reach" interpretation in ASA; once touched, it is not interference unless judged intentional, either running into the batted ball or the fielder.

This has often been misstated to mean only deflected by another infielder; not so stated. It covers missplays, bobbles, boots, by the same fielder, as well.