Facts: - highschool: duncanville -lrb- tx -rrb- - debutteam: arizona cardinals - statseason: 2013 - currentpositionplain: running back - currentnumber: -- - birth date: 9 march 1988 - weight: 207 - debutyear: 2011 - statlabel: rushes rushing yards returns/yards total td 's - heightin: 9 - statvalue: 60 21721/507 0 - heightft: 5 - college: kansas state - name: william powell - currentteam: free agent - pastteamsnote: yes - birth place: houston , texas - undraftedyear: 2011 - nflnew: williampowell/2531056 Based on these bullet points, write a short biography describing the life of william powell -lrb- american football -rrb- .
A:
william powell -lrb- born march 9 , 1988 -rrb- is an american football running back who is currently a free agent .