CONCACAF U-20 Championships

Looks like Vilarreal and Anderson...can't say what they've done or how they're doing though.

http://www.concacaf.com/article/concacaf-under-20-championship-match-officials-chosen

 

Highlights online are limited to cautions and goals, but I saw one play where it was clearly Elfath and not Villareal. As is the case with most things CONCACAF, anything in print is highly suspect. Checking the videos for faces is the only reliable source with them.

Good luck to our @CanadaSoccerEN & @ussoccer_ref refs at the #CONCACAF U20s: Drew Fischer, Phillipe Briere, Ismail Elfath, & Frank Anderson.

— PSRA Officials (@PSRAofficials) February 17, 2017

 

https://en.wikipedia.org/wiki/2017_CONCACAF_U-20_Championship#Group_stage lists the head referees.