Laz Díaz

Laz Díaz
Laz Díaz
	Díaz at Busch Stadium in 2025
MLB – No. 63
	Umpire
	Born: March 29, 1963; Miami, Florida, U.S.
MLB debut
	June 23, 1995
Crew information
Umpiring crew	F
Crew members	#63 Laz Díaz (crew chief); #7 Brian O'Nora; #83 Mike Estabrook; #12 Erich Bacchus;
Career highlights and awards
	Special Assignments World Series (2007, 2017, 2020); League Championship Series (2009, 2015, 2016, 2021); Division Series (2002, 2006, 2007, 2013, 2014, 2017, 2020); Wild Card Games/Series (2020, 2021, 2022); All-Star Games (2000, 2010); World Baseball Classic (2009, 2023); Field of Dreams Game (2021);

Lazaro Antonio Díaz Sr. (born March 29, 1963) is an American umpire in Major League Baseball. He joined the American League's full-time staff in 1999, and has worked throughout both major leagues since 2000. Díaz was promoted to crew chief for the 2022 season, becoming the second full time Latino crew chief, after Alfonso Marquez.