Question about Stat on Foul - Block

[CoachAZ]

Please excuse any bad nominclature on my part. I am a coach - stat man, not an official.

A1 has the ball and is driving for a layup. B1 (The defender) cleanly blocks the shot. About 2/10 of a second later (we have video), B1 falls into A1 and official correctly calls foul. The sign was a "PUSH". So should the block count as a block, or did the foul negate the block? Not that it matters score wise, but I want to be accurate in scoring the stats. My thinking is if the block attempt caused the foul, it is negated, but in this case, the contact was below and clearly after the block.

Thanks