Armstrong is 5-10, 185 pounds and officially entering his fourth NFL season out of West Texas A&M. Originally signed by Miami as an undrafted free agent in 2008, Armstrong has appeared in 35 games with 13 starts.
He has totaled 54 receptions for 986 yards with five touchdowns. In 2010, he appeared in 15 games with Washington and recorded 44 receptions for 871 yards with three touchdowns. In college, he registered 145 receptions for 1,768 yards and nine touchdowns. A native of Carrollton, Texas, he graduated from Newman Smith High School.