Early years

Johnson was born in Waco, Texas. He attended Waco High School, where he was a three-sport star in football, track and basketball. In football, he played as a linebacker, registering 170 tackles (103 unassisted), 21.0 stops for loss, 6.0 quarterback sacks, five forced fumbles and two interceptions, including one returned for a touchdown as a senior. Johnson produced a career-high 30 tackles and four forced fumbles in a single game. He earned Parade magazine high school All-America and first-team All-Texas Class 5A honors following both his junior and senior seasons, and played in the first-ever U.S. Army All-American Bowl on December 30, 2000.

Also an standout track & field athlete, Johnson was a state-qualifier in the 100-meters and the triple jump. He recorded a 10.5-second 100-meter dash, while also clearing over 48 ft (14.66 m) in the triple jump. At the District 13-5A Championships, he ran a leg on the Waco 4x100m relay squad, helping them earn a fourth-place finish at 43.77 seconds.

College career

Johnson enrolled in The University of Texas at Austin, and played for coach Mack Brown's Texas Longhorns football team from 2001 to 2004 and became one of the most dominant linebackers in Longhorns history. Johnson was a first-team All-Big 12 selection in 2002, 2003 and 2004, a consensus first-team All-American in 2003, and unanimous first-team All-American in 2004. Following his senior season, he was also recognized as the Big 12 Defensive Player of the Year, and received the Dick Butkus Award and Bronko Nagurski Trophy. The Texas Longhorns finished 11-1, and defeated the Michigan Wolverines 38-37 in the 2005 Rose Bowl.

College career statistics

Year	Games Played	Tackles				Sacks	Pass Defense		Fumbles		Blkd Kick
		Solo	Ast	Total	TFL-yds	No.-yds	Int-yds	PBU	Rec-yds	FF
2001	12	57	26	83	17-63	4.5-29	-	3	2-0	1	-
2002	13	73	47	120	13-31	2-4	4-85	10	-	-	-
2003	13	78	47	125	20-51	2-10	4-92	9	3-12	1	-
2004	12	73	57	130	19-52	2-15	1-18	8	-	9	1
Career	50	281	177	1001	69-197	10.5-58	9-195	30	5-12	11	1

Career awards and records

• 2003 Consensus First-team All-American
• 2004 Consensus First-team All-American
• 2004 Dick Butkus Award
• 2004 Bronko Nagurski Trophy

Professional career

2005 NFL Draft

Johnson was drafted 15th overall by the Kansas City Chiefs. After a month-long holdout by Johnson, he was signed by the Chiefs to a five-year deal worth $10.4 million. He joined Derrick Thomas and Percy Snow as the third Butkus Award winner to play for the Chiefs.

Pre-draft measurables

Ht	Wt	40-yd dash	10-yd split	20-yd split	20-ss	3-cone	Vert	Broad	BP
6 ft 3 1⁄2 in	242 lb	4.52 s	1.61 s	2.66 s	3.93 s	7.21 s	37 1⁄2 in	10 ft 0 in

Kansas City Chiefs

Johnson started every game for the Kansas City Chiefs in 2005, becoming the first Chiefs linebacker in 20 years to start all 16 games of his rookie campaign. He was subsequently awarded the Mack Lee Hill Award by the Chiefs (presented to the most outstanding rookie).

In Week 17 of the 2009 NFL season, Johnson had an NFL-record tying two interceptions returned for touchdowns.

November, 2010 - received a five-year contract extension. The total value of the deal was $34 million; $15 million of that in guaranteed money.

Following a stellar 2011 NFL season, Johnson was named to his first Pro Bowl and was also named 1st team All-Pro.

During a week 1 game against the Tennessee Titans on September 8, 2014, Johnson suffered a torn Achilles. Later in the day, it was announced he would miss the rest of the season. Two days later, Johnson was placed on injured reserve.

Professional career statistics

Year	Team	Games Played	Tackles			Sacks	Pass Defense		Fumbles
			Solo	Ast	Total	No.	Int-yds	PBU	Rec-yds	FF
2005	KC	16	80	16	96	2	0-0	5	0-0	2
2006	KC	13	58	18	76	4.5	0-0	3	0-0	2
2007	KC	16	83	11	94	4	2-18	6	0-0	3
2008	KC	14	68	17	85	1.5	1-7	6	0-0	4
2009	KC	15	30	7	37	1.0	3-175	5	0-0	1
2010	KC	16	95	26	121	1.0	1-15	16	0-0	4
2011	KC	16	104	27	131	2.0	2-18	9	0-0	1
2012	KC	16	110	15	125	2.0	0-0	4	0-0	4
2013	KC	15	95	12	107	4.5	2-44	6	2-11	0
2014	KC	1	4	0	4	0	0-0	0	0-0	0
2015	KC	16	95	21	116	4.0	2-23	8	0-0	2

Personal

His older brother, Dwight played defensive tackle at Baylor and in the NFL for the Philadelphia Eagles and the New York Giants.

Johnson's apartment in Kansas City was featured on a 2006 episode of MTV Cribs.

[ Source: Wikipedia ]