He has also been a member of the Atlanta Falcons, Jacksonville Jaguars, New England Patriots, Arizona Cardinals and Seattle Seahawks.

[1] Treadwell attended Crete-Monee High School in suburban Chicago, where he finished his three-year football career as the second-leading receiver in Illinois prep history with 3,563 yards.

[3] Treadwell was named the Chicago Tribune Player of the Year, NWI Times Offensive Player of the Year, and all-state first-team as a senior after leading Crete-Monee to a 14–0 record and the Class 6A state title; he hauled in 81 catches for 1,424 yards and 16 touchdowns and rushed for 257 yards and seven more scores on the ground, while on defense he compiled 56 tackles and six interceptions.

For his senior season efforts, Treadwell was named an All-American selection by Under Armour, USA Today, MaxPreps and SuperPrep.

Following his senior season, Treadwell played in the 2013 Under Armour All-America Game, where he was covered by the nation's No.1 cornerback and Florida recruit Vernon Hargreaves III, according to the Orlando Sentinel.

Sources: A member of the highly ranked 2013 University of Mississippi signing class, Treadwell played three seasons for the Rebels.

Treadwell exploded onto the college scene with a record-breaking rookie season, establishing Ole Miss' freshman records with 72 receptions for 608 receiving yards and five touchdown catches.

[5] As a result of his outstanding play, he was named SEC Freshman of the Year by the league coaches, becoming the first player in school history to receive the distinction.

[6] He also established a school freshman record with nine catches in his Rebel debut at Vanderbilt and matched that total again in the regular-season finale at Mississippi State.

The next week against Troy, he collected four catches for 53 yards and two touchdowns, including a highlight-reel catch-and-run in which he broke five tackles on his way to the end zone.

In the final game of the season at Mississippi State on November 28, Treadwell tied his own Ole Miss freshman record with nine catches for 57 yards.

On November 1, 2014, with 1:30 left in the game against #3 Auburn, Treadwell caught a screen pass and took it to the Tigers' 1 yard line before being tackled from behind and bending awkwardly.

[8][9][10][11] On January 4, 2016, Treadwell announced he would forego his final year of eligibility at Ole Miss to enter the 2016 NFL draft.

[12] Treadwell stated: "After sitting down with my family, we have decided it is time for me to take the next step in my career and enter the NFL draft; it's always been a dream of mine to play in the NFL, and I can't thank my teammates, coaches and our great fans enough for their unbelievable support since the first day I stepped foot on campus.

[14] On February 22, Treadwell announced to NFL.com that he would not take part in the 40-yard dash event at the combine, stating that he wanted more time before running it in front of NFL team scouts and general managers.

Measuring in at 6'2" (1.88 m), 217 pounds (98 kg) at Ole Miss' pro day, Treadwell confirmed the relatively slow 40-yard dash time that scouts anticipated; in his first attempt, he clocked a pedestrian 4.65, and on his second chance, he ran a 4.63 with a 1.62 10-yard split.

However, the more surprising result for Treadwell, in fact, was not his 40-yard dash time but a disappointing 33+1⁄2-inch (0.85 m) vertical jump, a half-inch better than he did in Indianapolis.

Based on his combine and Pro Day numbers, among the 43 wide receivers that were evaluated in Indianapolis, Treadwell's 40-yard dash time would have placed him 28th.

[19] In June 2016, after being selected by the Vikings, Treadwell created a minor controversy when he posted a photo of himself on social media wearing an Oakland Raiders baseball cap.

On August 12, 2016, Treadwell made his first appearance as a Viking in a preseason game against the Cincinnati Bengals, catching a game-high four passes for 41 yards from backup quarterback Shaun Hill and third-stringer Joel Stave.

[20] On November 6, 2016, Treadwell caught his first career NFL pass, which was a 15-yard reception from quarterback Sam Bradford in the first quarter against the NFC North division rival Detroit Lions.

Despite having high hopes following the draft, Treadwell's rookie year was limited as he only appeared in nine games and finished the season with only one reception for 15 yards.

[35] Although seeing limited action in only five games of the 2020 season, he made six receptions on seven total targets for 49 yards and scored a single-season career-high of two touchdowns.