Slide = Not travelling

[26 Year Gap]

This is one of those situations where you let your partner take the heat for an incorrect call. There is nothing you can do to better the situation by trying to explain a rule to him on a violation like that. You can talk to him in private about it at half or a point later on during the season, but you may not get a positive response. You now know that the call was incorrect, so use that knowldge to help you recognize similar plays in the future so that you do not repeat his mistake.