Brock missed the 1961 inaugural Gotham Bowl against Baylor University. It was claimed that he signed a contract with a professional team before the game, and the school suspended him for the contest to avoid any possible sanctions by the NCAA.[3][4] Baylor won the game 24–9.[5]
Even though he was a reserve for most of his college career, he was chosen by the Bears because of his measurables and performance as a blocker. On August 30, he was waived after struggling in the Shrine game against the Green Bay Packers.
Dallas Cowboys
On September 2, 1962, the Dallas Cowboys claimed him off waivers. He was a reserve player on both offense and defense. In 1963, he focused on being a defensive tackle, before being released on October 14.
It was only when Brock got to the Saskatchewan Roughriders in 1964 that he became a standout at right offensive tackle, playing his entire career with the Green Riders. He received CFL All-Star recognition in 4 consecutive years, from 1966 to 1969.
He helped the franchise win its first Grey Cup championship in 1966, a 29–14 win over the Ottawa Rough Riders. He appeared in 159 games during his CFL career and retired after the 1975 season.