Omnisicient John Wall

In Harvey Araton's New York Times story about Kyrie Irving today:

Tuesday night, John Wall -- last year’s first pick by Washington -- whispered “Cleveland” in his ear before the cameras turned on.

OK, neato, sounds cool but ... what?

Was that a crazy good guess? Or was Wall actually telling Irving who had won the lottery -- conducted shortly before, in a locked room -- where all cell phones and the like are confiscated -- upstairs at the NBA's Secaucus offices.

Having been in that locked room in the past, I know they're pretty serious about keeping all those "in the know" in that room until after the picks are revealed on television.

This is almost a throwaway line in Araton's story ... but I can't tell what to make of it. Did Wall really know what had happened? Or was he just goofing around?