Sports officiating

New Orleans Saints linebacker Demario Davis (56) sacks Pittsburgh Steelers quarterback Ben Roethlisberger (7) during an NFL football game in New Orleans on Sunday, Dec. 23, 2018. New Orleans won, 31-28. (Scott Clause/The Daily Advertiser via AP)

FILE - In this Dec. 19, 2018, file image taken from a video provided by SNJTODAY.COM, Buena Regional High School wrestler Andrew Johnson gets his hair cut courtside minutes before his match in Buena, N.J., after a referee told Johnson he would forfeit his bout if he didn't have his dreadlocks cut off. A lawyer for Johnson is suggesting the impromptu hair cut was due in part to the referee’s tardiness. (Michael Frankel/SNJTODAY.COM via AP)

FILE - In this Feb. 4, 2018, file photo, umpires Roy Ellison (81), right, and Ruben Fowler (71), wave before the NFL Super Bowl 52 football game between the Philadelphia Eagles and the New England Patriots, in Minneapolis. A person familiar with the move says the NFL has fined umpire Roy Ellison $9,300 and reinstated him from administrative leave after his dispute in Miami with Buffalo Bills defensive end Jerry Hughes. The person confirmed the fine to The Associated Press on condition of anonymity Friday, Dec. 14, 2018, because the league hadn't commented. (AP Photo/Charlie Neibergall, File)

President Donald Trump, center, talks with Army Chief of Staff Gen. Mark Milley, left, watch from the stands before the Army-Navy NCAA college football game in Philadelphia, Saturday, Dec. 8, 2018. (AP Photo/Susan Walsh)

El árbitro Paolo Silvio Mazzoleni (centro) revisa el VAR durante un partido de la Serie A de Italia entre el Milan y Juventus en el estadio San Siro de Milán, el domingo 11 de noviembre de 2018. (AP Foto/Luca Bruno)

FILE - In this Oct. 22, 2018, file photo, referee Natalie Sago works during the second half of an NBA basketball game against the Memphis Grizzlies and Utah Jazz in Salt Lake City. Ashley Moyer-Gleich and Natalie Sago are among five officials who were promoted Thursday by the NBA to full-time status, making them the fourth and fifth women in league history to have that designation. (AP Photo/Rick Bowmer, File)

FILE - In this Aug. 27, 2018, file photo, a serve clock is viewed during the U.S. Open tennis tournament match between Venus Williams and Svetlana Kuznetsova, of Russia, in New York. Like the serve clocks that made their Grand Slam debut in August at the U.S. Open after being tested at the 2017 Next Gen ATP Finals, another tennis innovation, video review for certain judgment calls by chair umpires, will be tried at the tournament for top 21-and-under men at Milan in November. (AP Photo/Seth Wenig)

Pac-12 Commissioner Larry Scott speaks during the Pac-12 NCAA college basketball media day Thursday, Oct. 11, 2018, in San Francisco. (AP Photo/Eric Risberg)

First base umpire Angel Hernandez (5) watches from his position during the second inning of Game 3 of baseball's American League Division Series between the New York Yankees and the Boston Red Sox, Monday, Oct. 8, 2018, in New York. (AP Photo/Bill Kostroun)