Early years

Davis was born in Missouri City, Texas. He attended Thurgood Marshall High School in Missouri City, where he was a two-sport star in football and track. He played as a running back for the Marshall Buffaloes football team. He was a four-star recruit according to Rivals.com. He was ranked the No. 3 running back prospect in the state of Texas, behind only Christine Michael and Waymon James.

His prep football career was cut short by injuries. He played only four games in his junior year due to a fractured collarbone, finishing the season with 425 rushing yards and four touchdowns. As a senior, he suffered a broken ankle in the first game of the season, in which he had 33 carries for 278 yards and two touchdowns as well as three receptions for 46 yards. He missed the remainder of his senior season.

In track & field, Davis competed as a sprinter and was a state-qualifier in the 200-meters and relays. He recorded a personal-best time of 21.68 seconds in the 200-meter dash at his district track meet as a junior. He also competed as a member of the Marshall relay squads, posting times of 42.66 seconds in the 4 × 100m, 1:27.91 minutes in the 4 × 200m and 3:15.24 minutes in the 4 × 400m. In addition, he also ran a 4.4-second 40-yard dash, bench-pressed 360 lb, squatted 545 and power-cleaned 300.

College career

While attending the University of Arkansas, Davis played for the Arkansas Razorbacks football team from 2009 to 2012. As a sophomore in 2010, he rushed for 1,322 yards with 13 touchdowns. He led all SEC running backs in rushing yards, although quarterback Cam Newton of Auburn led the SEC in total rushing yards. Davis was a first-team All-SEC selection by the Associated Press.

Davis was carted off the field from practice on August 11, 2011 with a left ankle injury. The injury was announced by the University of Arkansas the next day as season-ending.

As a junior in 2012, Davis rushed for only 377 yards (3.4 avg), scoring two touchdowns.

Career statistics

		Rushing					Receiving
Year	G	Att	Yds	Avg	TD	Lg	Rec	Yds	Avg	TD	Lg
2009	12	33	163	4.9	4	36	2	4	2.0	0	5
2010	13	204	1,282	6.3	13	71	19	140	7.4	1	30
2012	10	112	377	3.4	2	28	11	158	14.4	1	64
Totals	35	349	1,822	5.0	19	71	32	302	7.5	2	64

Professional career

2013 NFL Combine

Pre-draft measurables

Ht	Wt	Arm length	Hand size	40-yd dash	10-yd split	20-yd split	20-ss	3-cone	Vert	Broad	BP
5 ft 10 in	227 lb	29 3⁄4 in	8 5⁄8 in	4.37 s	1.49 s	2.49 s	4.38 s	6.96 s	33.5 in	10 ft 1 in	31 reps

2013 NFL Draft

In March 2012, Arkansas Razorbacks coach Bobby Petrino announced that the 2012 season "will be last year and then he'll come out, go in the draft". Indeed, Davis entered the NFL Draft, announcing his decision to forgo his final year of eligibility on December 12, 2012. Davis was selected with the 96th pick by the Kansas City Chiefs.

Kansas City Chiefs

Davis scored a 108-yard kick return touchdown in Week 13 vs the Denver Broncos. The return was tied for the longest return in NFL history. He saw limited time as a rookie behind All-Pro Jamaal Charles but made his first start in Week 17 against the Chargers and played extensively in a playoff loss to the Colts before suffering a knee injury. In 16 games on his rookie year in 2013, Davis had 242 rushing yards along with 75 receiving yards. He also returned 10 kickoffs for 321 return yards. In 2014, he rushed for 463 yards along with 147 receiving yards and 829 return yards on 29 return opportunities. In 2015, he returned 24 kickoffs for 603 return yards.

With the Chiefs finishing the 2015 season 11-5, the team clinched a wild card spot. On January 9, 2016, in the Wild Card Round against the Houston Texans, Davis opened the game by returning a kickoff 106 yards for a touchdown. The Chiefs shut out the Texans 30-0.

[ Source: Wikipedia ]