David Michael Diehl (/ˈdiːl/; born September 15, 1980) is a Croatian-German college football coach and former professional player who spent his entire career as an offensive lineman with the New York Giants of the National Football League (NFL).

He is the assistant offensive line coach for the University of Memphis, a position he has held since 2024.

[1][2][3][4][5] When he was younger Diehl and his family frequently visited local Croatian churches and clubs in Chicago.

[5] He strengthened his Croatian-American ties after he moved to New Jersey, where the local Croatian community often have him as a visitor.

Registered 56 knockdowns as he participated in 385 plays for an offense that gained 5,041 yards as the line allowed only 16 quarterback sacks (second in the Big Ten).

[11] He had started every game of his NFL career until 2010, when he tore his hamstring and suffered a partially dislocated hip.

[13] On August 21, 2013, the New York Giants announced that Diehl will undergo surgery to repair his injured right thumb.

[15] On August 6, 2014, it was announced Diehl had been hired to work as a color analyst for NFL games on Fox.

(It was supposed to be Donovan McNabb, but he was arrested for a DUI in July 2015, leading Fox to make this change.

[20] On the morning of June 11, 2012, Diehl was arrested for suspicion of drunk driving after hitting several parked cars.

Diehl was purportedly watching a Croatian soccer game with friends at a bar in Astoria, Queens, NY.