"There's just one thing about that block that bothers me, and I can't quite figure it out - I know I'm not the smartest official on the track...oh these? These are French skates."
Ah; I've made a joke that kinda only makes sense if you are a Columbo fan AND know a bit about roller derby. So for everyone outside of that Venn Diagram's intersection:
In the '70s, there was a television program starring Peter Falk as Lieutenant Columbo.
In roller derby you skate counterclockwise around the track; hence, you're always turning to your left. Also "N.S.O." is the abbreviation for "Non-Skating Official", one of two kinds of referees. And um.. since this referee is on skates, we'll just assume they usta be an NSO. (and "Column" has nothin' to do with nothin', outside of phonetics). Also "Official Review" is a derby term for a time-out officials take (or coaches request) to review a jam / unit of play and assess penalties. So it's like, "..just one more thing"