Last season Abdullah played nine games, tallying 49 tackles, one sack and one interception.
Abdullah has battled concussions for years, a fact that may have prevented the Vikings from signing him during this last season:
The Vikings discussed an extension during the season, but nothing materialized. Abdullah's concussion history -- two in the past four years, prompting a five-game stint on injured reserve last season -- gave the Vikings pause, but a concussion specialist out of Pittsburgh recently cleared Abdullah, 26, to continue his career.
Abdullah has played his entire four-year career in Minnesota. The Vikings picked him up as an undrafted free agent in 2008, and the Washington State product proceeded to play in 16 games as a rookie. He had a career-high 75 tackles in 2010.