As I previously stated, just because I didn't see the hold doesn't mean it didn't occur just found the timing of the flag being thrown peculiar as well. The emphasis was on the effort by AJ, a small slot receiver filling in at RB giving it his all to help his team and creating a definite highlight reel.
Oh all right. I was just wondering if the holding foul was downfield late in the play being the reason for the late flag, but maybe not. Sometimes a penalty will be called a little later in the play on a judgement call such as holding.