Lee must have been a heckuva job because Brock was inspired to try out for the professional league after helping Southern to win the NAIA championship in his junior year. Brock was selected to play on the U.S. team in the 1959 Pan American Games.
Brock tried out with the St. Louis Cardinals in 1960 and ended up as a free agent with the Chicago Cubs.
He made his debut in 1961 and made an immediate impact with his great speed and base running skills.
In 1964, Brock almost caused a rebellion when he was traded away to the St. Louis Cardinals for a popular Card white pitcher named Ernie Broglio. (The trade of Brock for Broglio proved to be one of the most lopsided deals in baseball history as Brock would go on baseball supremacy while Broglio’s injury prone career ended abruptly.
Brock has received numerous attributes since since his passing and for those who didn’t witness his greatness on the field, here’s a brief summary:

• 1964  Brock played left field with the Cardinals…batted  .348 and stole 33 bases, leading the Cards to the world championship over the New York Yankees – their first in 18 years. 
• 1967  In the ’67 World Series against the Boston Red Sox, he hit .414…added a home run and drove in 3 runs and had a perfect 7 for 7 stolen bases as the Cards won their second title.
• 1968  Brock hit .464….had 13 hits and tied his own World Series record with seven more stolen bases, but the Cards fell to the Detroit Tigers in seven games.
•  1974  At the age of 35, Brock had his career best season when he broke former Dodger   Maury Wills single season stolen base record with 118.
•  1977  He broke Ty Cobb’s career stolen bases record, 938 (since by Ricky Henderson).
•  The 6-time All-Star led the major leagues in steals six times.
•  The only player in history to steal 50 or more bases in 12 straight seasons
•  Led the National League in doubles and triples in 1968
•  Led the league in singles in 1972
•  1974  Runner-up for  the NL Most Valuable Player Award