BALTIMORE, MD — Canisius High School graduate and Baltimore Ravens offensive lineman John Urschel is retiring from the NFL, the team announced Thursday.

Urschel, a gifted mathematician, is currently pursuing a PhD in mathematics at Massachusetts Institute of Technology.

“This morning John Urschel informed me of his decision to retire from football,” Ravens coach John Harbaugh said in a statement. “We respect John and respect his decision. We appreciate his efforts over the past three years and wish him all the best in his future endeavors.”

Here's John Urschel's official statement released on Twitter. In it he says "it wasn't an easy decision, but I believe it was the right one for me. There's no big story here, and I'd appreciate the right to privacy." He also wrote, "I'm looking forward to the chance to take courses that are only offered in the fall semester, while spending time with my fiancee and preparing myself for the new challenges that will come with fatherhood."

Urschel, a Williamsville native, was a fifth-round pick in 2014 out of Penn State. Urschel played 42 games — 15 as a starter — with the Ravens as a guard and center.

2 On Your Side's Claudine Ewing profiled Urschel in 2013 when he played for Penn State. Watch the video here: