Early years

Williams attended Richlands High School in Richlands, North Carolina, where he was a two-sport star in football and track. He recorded 87 tackles, 13 sacks, 22 tackles for loss, five forced fumbles, two fumble recoveries, and five blocked kicks as a senior. Also played running back as a senior because of injuries at that position, rushing for 590 yards and three touchdowns on 58 carries. As a junior, he recorded over 100 tackles. He was selected to the 2002 North Carolina Shrine Bowl team where he notched four sacks. He was an Associated Press (AP) All-State selection in 2002. He was just one of three North Carolina High School players to be named to FoxSN's 2002 Countdown to Signing Day All-South team. His high school number (82) was retired. Williams also competed in track & field, and was a state qualifier in the shot put (top-throw of 52-5 or 16.05m).

He was ranked No. 8 in SuperPrep's Elite 50 overall. He was considered the fifth-best defensive end in the country by BorderWars.com, while Rivals100.com ranked him ninth.

College career

Williams attended North Carolina State University, where he played for the NC State Wolfpack football team from 2003 to 2006.

Professional career

2006 NFL Combine

Pre-draft measurables

Ht	Wt	40-yd dash	10-yd split	20-yd split	20-ss	3-cone	Vert	Broad	BP
6 ft 7 in	295 lb	4.73 s	1.59 s	2.75 s	4.36 s	7.19 s	40.5 in	10 ft 0 in	35 reps

Houston Texans

Despite draft analysts predicting that the Houston Texans would pick Reggie Bush with the first overall pick in the 2006 NFL draft, they instead selected Williams and signed him to a six-year, $54 million contract.

On October 1, 2006, Williams recorded his first sack and a half against Miami Dolphins' quarterback Daunte Culpepper in the Texans' first win of the season (score 17-15). Three weeks later, Williams sacked Jacksonville Jaguars quarterback Byron Leftwich and recovered a fumble in the Texans' 27-7 upset. In the 2006 season, Williams started all 16 games with 47 tackles, 4.5 sacks, and 1 forced fumble.

Early in the 2007 season, Williams played well, with an outstanding performance in the first game. Williams made five tackles, two sacks, and returned a fumble by Kansas City Chiefs fullback Kris Wilson for a touchdown. He had particularly big games against the Denver Broncos and Tennessee Titans, sacking quarterback Jay Cutler 3.5 times and quarterback Vince Young 2.5 times in one game each. His first sack of 2007 was of Peyton Manning. Before the game, Indianapolis Colts coach Tony Dungy compared Williams to Colts Pro Bowl defensive end Dwight Freeney. Williams finished the 2007 season by starting all 16 games with 59 total tackles and 14 sacks.

The 2007 season was a year that Williams answered many of the critics that he gained because of his lofty top draft pick status. In 2007, through 15 games, Williams accounted for 48 percent of the Texans' sacks, a higher percentage than any other player. Williams was a first-team All-Pro selection by the Sporting News. Williams was not elected to the Pro Bowl game, but was voted an alternate to the game.

In 2008, Williams amassed 12 sacks and 53 tackles in 16 games (all starts). This effort included three sacks and one forced fumble in the Texans' first ever Monday Night Football game on December 1, 2008. For his efforts, Williams was selected for his first Pro Bowl as a starter and was a first-team All-Pro selection by the Sporting News for the second consecutive season. Williams was again selected to the Pro Bowl after the 2009 season.

On December 15, 2010, the Texans announced they were placing Williams on injured reserve for the remainder of the season with an inflamed hernia. Williams had been struggling since September with injuries, though he still ranked in the top third in the NFL in sacks with 8.5 through 13 games.

In 2011, Williams transitioned to outside linebacker. During Week 5 against the Oakland Raiders, Williams suffered a torn pectoral muscle while sacking Raiders quarterback Jason Campbell for his team-leading fifth sack. On October 12, the Texans placed Williams on injured reserve for the second consecutive year, ending his season. Williams' contract ended in 2011 and he became a free agent, able to sign with any other football team.

Texans franchise records

• Second most career sacks (53), surpassed on 12/21/2014 by J.J. Watt.
• Second most career forced fumbles (11), surpassed by J.J.Watt on 11/30/2014.

Buffalo Bills

On March 15, 2012, after two days of negotiation with the Buffalo Bills, Williams signed a six-year contract worth up to $100 million ($49.5 million guaranteed), which made it the most lucrative contract for a defensive player in NFL history at the time. On May 22, 2012, it was announced that Williams would be wearing number #94 while with the Bills. The #90 that he wore with the Texans was worn by veteran Chris Kelsay in Buffalo.

Williams started all 16 games in 2012, making 46 tackles, 10.5 sacks, and 2 forced fumbles. He had a season-high 3 sacks against the Colts on November 25, 2012. During the season, Williams was often bothered by a wrist injury which supposedly affected his play.

On September 15, 2013, Williams had 4.5 sacks in a winning effort against the Carolina Panthers, which broke the Bills franchise record for the most sacks in a game. He finished the 2013 season with 38 tackles, a forced fumble, 4 passes defended, and 13 sacks in 16 starts. He finished the 2014 season with 42 total tackles (36 solo, 6 assisted), and 14.5 sacks. On January 2, 2015, he was named to the 2014 AP All-Pro First-Team, as well as the 2015 Pro Bowl.

On March 1, 2016, Williams was released by the Buffalo Bills.

Miami Dolphins

Williams signed a two-year deal with the Miami Dolphins on March 8, 2016.

Professional statistics

Season	Team		Tackles				Interceptions			Other
		GP	Solo	Ast	Total	Sck	Int	Yds	IntTD	DefTD	FFum	FRec	PD	Safety
2006	Houston Texans	16	35	12	47	4.5	0	-	-	1	1	1	3	0
2007	Houston Texans	16	43	16	59	14.0	0	-	-	0	2	1	1	0
2008	Houston Texans	16	44	9	53	12.0	0	-	-	0	4	0	0	0
2009	Houston Texans	16	38	5	43	9.0	0	-	-	0	2	1	3	0
2010	Houston Texans	13	22	6	28	8.5	0	-	-	0	1	0	2	0
2011	Houston Texans	5	10	1	11	5.0	0	-	-	0	1	0	1	0
2012	Buffalo Bills	16	37	9	46	10.5	0	-	-	0	2	2	4	0
2013	Buffalo Bills	16	28	10	38	13.0	0	-	-	0	1	0	4	0
2014	Buffalo Bills	16	36	6	42	14.5	0	-	-	0	2	0	2	0
2015	Buffalo Bills	15	15	4	19	5.0	0	-	-	0	0	0	0	0
	Total	145	308	78	386	96.0	0	-	-	1	16	5	20	0

Personal life

In 2012, Williams debuted a honey-toasted oats breakfast cereal called "MariO's", and the proceeds from the sales are intended to be donated to a Buffalo charity supporting children with cancer and their families.

In 2011, Williams donated five Chevrolet Camaros to the Houston Police Department, and in 2013 he made another donation of five Dodge Chargers.

In 2010, Williams - an avid boater, commissioned a one-of-a-kind custom wrap on his MasterCraft X80 boat. Williams, Josh Sirlin and MasterCraft Boat Company worked out the details of the boat design through a series of sketches and then a life-size canvas painting.

Williams resides in Orchard Park, New York, where he bought a 9,389-square-foot (872.3 m2) home for $2 million in 2012.

[ Source: Wikipedia ]