College career

He played college football at Oklahoma State. He was an honorable mention All-Big 12 in his junior season at Oklahoma State.

Professional career

Arizona Cardinals

Smith was drafted 135th overall in the 2004 NFL Draft and was the starting left defensive end. During the 2008 NFL Season, Smith played in every game and had 2 forced fumbles and 3.5 sacks. Smith helped the Cardinals reach Super Bowl XLIII, but lost 27-23 to the Pittsburgh Steelers. Despite a great performance during the course of the season, the Cardinals chose not to re-sign him and let him go into free agency.

Houston Texans

Smith was signed as an unrestricted free agent by the Houston Texans to replace the released Anthony Weaver.

In 2011, Smith went to his first career Pro Bowl, replacing the New England Patriots' Andre Carter who was unable to play due to injury.

In 2013, Smith was suspended for week one after an incident in the preseason in which he removed Miami Dolphins lineman Richie Incognito's helmet and swung it at him. On November 29, 2013, he was fined $15,750 for hitting Jacksonville Jaguars' quarterback Chad Henne in the head and neck region.

Oakland Raiders

On March 14, 2014, Smith signed a two year, $9 million contract with the Oakland Raiders and played defensive tackle in the Raiders base 4-3 defense. He was released by the Raiders on March 31, 2015.

Denver Broncos

On April 2, 2015, Smith signed a one-year, $2 million contract with the Denver Broncos.

Smith won Super Bowl 50 with the Broncos after they beat the Carolina Panthers 24-10.

NFL stats

Year	Team	GP	COMB	TOTAL	AST	SACK	FF	FR	FR YDS	INT	IR YDS	AVG IR	LNG	TD	PD
2005	ARI	12	16	16	0	3.0	0	0	0	0	0	0	0	0	0
2006	ARI	16	25	14	11	2.5	0	2	0	0	0	0	0	0	0
2007	ARI	16	43	37	6	5.5	1	3	0	0	0	0	0	0	0
2008	ARI	16	41	31	10	3.5	2	3	0	0	0	0	0	0	0
2009	HOU	16	34	26	8	4.5	2	2	2	0	0	0	0	0	1
2010	HOU	16	38	23	15	4.0	1	0	0	0	0	0	0	0	2
2011	HOU	16	25	19	6	6.5	1	0	0	0	0	0	0	0	2
2012	HOU	16	30	22	8	7.0	2	1	0	0	0	0	0	0	3
2013	HOU	15	30	22	8	5.0	1	0	0	0	0	0	0	0	0
2014	OAK	16	20	18	2	3.0	0	0	0	0	0	0	0	0	1
2015	DEN	16	9	7	2	100	2	0	0	0	0	0	0	0	0
Career		173	311	235	76	47.0	10	11	0	0	0	0	0	0	10

Key

• GP: games played
• COMB: combined tackles
• TOTAL: total tackles
• AST: assisted tackles
• SACK: sacks
• FF: forced fumbles
• FR: fumble recoveries
• FR YDS: fumble return yards
• INT: interceptions
• IR YDS: interception return yards
• AVG IR: average interception return
• LNG: longest interception return
• TD: interceptions returned for touchdown
• PD: passes defensed

Personal life

Smith has two children, Antonio Smith Jr. (2003) and Winter Smith (2009).

Smith, along with his sister Antwonette, founded Smith's Little People With Big Challenges Foundation. The organization's mission is to fight childhood obesity.

His father died 4 days before Super Bowl 50, due to heart surgery complications.

[ Source: Wikipedia ]