An undrafted free agent in 2001, he began his professional football career on the practice squad of the CFL team Calgary Stampeders.

After playing briefly for the Atlanta Falcons very late in the 2006 season, Robertson returned to the CFL for his later football career.

In his final pro football season, Robertson was part of the 2011 BC Lions team that won the 99th Grey Cup.

Born in Washington, D. C., Robertson grew up in Dayton, Ohio and graduated from Stebbins High School in nearby Riverside in 1997.

[1] At Ohio Northern, in 1999 and 2000, Robertson earned first-team Hewlett-Packard Division III All-American and All-Ohio Athletic Conference honors both seasons.

[4] Robertson made more appearances at running back in 2005 due to injuries to Stephen Davis, DeShaun Foster, and Nick Goings.

[4] Robertson also played in all three of the Panthers' postseason games including the NFC Championship, recording 19 rushing, 27 receiving, and 186 kick return yards.

[10] On December 12, 2006, Robertson was signed by the Atlanta Falcons due to injuries to Warrick Dunn and Jerious Norwood.

[12] Due to injuries to running backs Corey Holmes, Wes Cates, and Josh Ranek the Saskatchewan Roughriders signed Robertson on November 14, 2007.