Originally selected as a seventh round (244th pick overall) draft choice by Atlanta in 2007. Signed by Atlanta as a free agent on August 7, 2011.
In three seasons with the Falcons, has totaled 170 carries for 718 yards with five rushing yards and 38 receptions for 348 yards and one receiving touchdown. Set a career-high with 147 rushing yards in the 2009 season finale against Tampa Bay (1/3/10).
Recorded 32 receiving yards on five catches @ Chicago (9.11), while adding two carries for 10 yards on the ground. Hauled in one catch for eight yards vs. Philadelphia (9.18). Posted two catches for three yards @ Tampa Bay (9.25) before leaving with an injury (head). Inactive @ Seattle (10.2). Tallied two receptions for 21 yards vs. Green Bay (10.9) and added one rush for two yards. Logged 12 rushing yards on three carries and added one reception for seven yards vs. Carolina (10.16), and assisted on one special teams tackle. Hauled in one catch for 18 yards @ Detroit(10.23). Saw action at fullback and running back @ Indianapolis (11.6) and tallied eight carries for 15 yards. Registered two grabs for 25 yards with one touchdown vs. New Orleans (11.13). Notched 11 rushing yards on seven carries and added one catch for four yards vs. Tennessee (11.20). Recorded one catch for four yards and added three carries for seven yards vs. Minnesota (11.27). Logged two carries for16 yards @Houston (12.4). Recorded six yards on three carries and added one reception @ Carolina (12.11). Posted five carries for 22 yards, including a long of 11 yards, and added four receptions for 26 yards vs. Jacksonville (12.15). Hauled in four catches for 28 yards, including a long of 16 yards, @ New Orleans (12.26). Logged nine carries for 50 yards, including a long of 18 yards, and added one reception for four yards vs. Tampa Bay (1.1).
Competed in 14 games totaling 87 carries for 324 yards with two touchdowns and 44 receptions for 303 yards and three scores. Earned NFC Offensive Player of the Week honors after posting a career-high 186 all-purpose yards against Arizona (9/19). Snelling scored two rushing TDs and one receiving touchdown while racking up 129 yards on 24 carries and 57 yards on five receptions. Posted 62 rushing yards on 14 carries at New Orleans (9/26). Registered 11 yards on three carries while adding six catches for 56 yards, including a career-long 28-yard touchdown against Baltimore (11/11). Notched four receptions for 15 yards and one touchdown at Seattle (12/19).
Competed in 14 games, starting in three and totaled 142 carries for 613 yards with four touchdowns and 30 receptions for 259 yards and one score. Recorded 37 rushing yards on six carries and hauled in his first career receiving score on a 10-yard grab against Carolina (9/20). Posted 61 rushing yards on 18 carries with one touchdown at Carolina (11/15) and added 32 receiving yards. Started at running back and registered 25 carries for 76 yards while contributing with a career-high two touchdowns at the New York Giants (11/22). Notched 15 carries for 68 yards against Buffalo (12/27). Recorded a career-high in rushing yards (147) and tied a career-high in attempts (25) at Tampa Bay (1/3) while adding 21 receiving yards.
Competed in all 16 regular season contests and Atlanta's Wild Card Playoff game at Arizona. Finished the season with 15 rushes for 62 yards and eight receptions for 89 yards and led the team with 19 special teams tackles. Started his first career game at Carolina (9/28) and hauled in one reception for 11 yards. Tallied 47 rushing yards on eight carries and hauled in one pass for 12 yards at Oakland (11/2) in addition to adding one tackle on special teams. Notched a career-high 31 receiving yards on two catches vs. Carolina (11/23), including a career-long 27-yard reception in the first quarter.
In seven games, totaled 13 rushes for 43 yards and his first career touchdown against the Arizona Cardinals. Tallied two carries for 13 yards vs. Tampa Bay (11/18) in his NFL debut. Notched two carries for a career-high 18 yards and his first career NFL touchdown at Arizona (12/23). His first career professional touchdown came on a one-yard plunge in the first quarter.
In his 267 career rushing attempts at Virginia, was only stopped behind the line of scrimmage 15 times, while 81 of his carries produced first downs. Had key rushing attempts that set up 21 touchdown drives and 11 more that resulted in field goals. 34 of 75 receptions were good for first downs. His average of 5.3 yards per rush ranked fifth on the school's all-time rushing record list when he graduated, topped only by John Papit (1947–50), Terry Kirby (1989–92), Barry Word (1982–85) and Nikki Fisher (1988–91). His 325 rushing yards in 2005 were the most by a Virginia fullback in a season since Charles Way totaled 517 yards in 1994. Super Sleeper Team and All-Atlantic Coast Conference second-team selection by The NFL Draft Report in 2006. His 325 yards in 2005 led ACC fullbacks and were the most by a Virginia fullback in a season since 1994.
Attended L.C. Bird High School (Richmond, Va.). Four-time all-district tailback and was named to the all-region team three times. Gained over 3,300 yards rushing during his career, including 1,444 yards and 14 touchdowns during his senior season. Earned Group AAA All-State honors. Graduated in May 2006 with a degree in Anthropology.