Premise: John Cameron Urschel (born June 24, 1991) is a Canadian mathematician and retired professional American football guard and center. He played college football at Penn State and was drafted by the Baltimore Ravens in the fifth round of the 2014 NFL Draft. Urschel played his entire NFL career with Baltimore before announcing his retirement on July 27, 2017, at 26 years old.
Hypothesis: John Cameron Urschel got dirty.