Lamar Jackson celebrates John Harbaugh’s birthday by sporting this t-shirt at today’s practice.

“Everybody thank Coach Harbaugh, for sure” Jackson said.

Harbaugh turns 58 today — and likely didn’t sign off on that pic on the t-shirt.

(Photo courtesy of ⁦@Ravens⁩) pic.twitter.com/wmNLCuZ3SH

— Jamison Hensley (@jamisonhensley) September 23, 2020