Acquired: Signed as a free agent on April 3, 2014
2014: In 17 games (11 starts), Jefferson recorded 19 defensive tackles, four sacks, six pass knockdowns, one fumble recovery and one blocked punt. Jefferson recorded his first career CFL sack in Week 3 against the Ottawa REDBLACKS. He recorded a career-high six defensive tackles and two sacks in Week 4 against Winnipeg.
In the Labour Day Classic against Calgary, Jefferson blocked a Rob Maver punt that linebacker Otha Foster recovered and ran back for a 57-yard TD.
In the Western Semi-Final against Saskatchewan, Jefferson started at defensive end.
In the Western Final against Calgary, Jefferson recorded one defensive tackle.
Pro: In 2013, Jefferson spent time with the Houston Texans and appeared in six games.
College: Jefferson earned All-Southland Conference first-team honours as a senior at Stephen F. Austin and recorded 36 tackles, a team-high eight sacks and five forced fumbles in 11 games.