Grady attended East Grand Rapids High School in Grand Rapids, MI. He played basketball and football, but he was recruited mainly for his exploits on the hardcourt.
Grady played basketball at Michigan for his first couple years on campus, but he struggled with his shot and eventually gave up basketball for a chance to walk on to the Michigan football team as a slot receiver for Rich Rodriguez. As a redshirt sophomore, he caught 10 passes for 102 yards and 1 touchdown in 2009 as a backup to Martavious Odoms. He enjoyed his most productive season as a redshirt junior in 2010, starting one game and catching 17 passes for 211 yards. His contributions dipped with the return of a pro-style offense in 2011, catching just 5 passes for 75 yards.
32 receptions for 388 yards (12.1 yards per catch) and 1 touchdown; 5 carries for 28 yards (5.6 yards per carry); 3 kick returns for 57 yards (19.0 yards per return)
Grady was a valuable member of the football team, despite not making a huge impact statistically. He struggled catching the football early on in his career, but became a reliable target as his football career continued. He was always slight (5'10", 177 lbs.) but had good speed that allowed him to be somewhat productive running the ball and catching short passes.
Grady participated in Michigan's pro day prior to the 2012 NFL Draft and reportedly ran a 4.35 forty, but considering his size and lack of production, his football career is likely over unless he wants to play in Canada or in the Arena Football League.