Blackmon decided not to participate in any workouts at the
NFL Combine, instead performing at Oklahoma State's
Pro Day. He was considered the best wide receiver in the
2012 NFL draft and predicted to go early in the first round. He had been compared to
Anquan Boldin and
Terrell Owens. He was drafted by the
Jacksonville Jaguars with the fifth pick in the first round of the draft. Jacksonville traded up with the
Tampa Bay Buccaneers to draft him, exchanging their number seven selection and a fourth round pick for Tampa Bay's spot. Blackmon was the highest drafted player from Oklahoma State since
Barry Sanders in
1989. Blackmon scored his first career touchdown on November 4, 2012, against the
Detroit Lions. On November 18, in a game against the
Houston Texans, Blackmon had seven receptions for 236 yards. The 236 yards were third-most for an NFL rookie, (currently the fourth-most), the most since
Jerry Rice had 241 in his rookie season of 1985, 27 years previously; as well as the second-most in a game in Jaguars franchise history, trailing only 291 yards by
Jimmy Smith in a September 2000 game at the
Baltimore Ravens. Blackmon combined with
Andre Johnson (273 yards on 14 receptions) to have the most receiving yards in a game by two players on different teams. Blackmon finished his 2012 season with 64 receptions and 865 yards receiving, both of which led all NFL rookies. Blackmon also led all rookie receivers in first downs. His 81-yard touchdown reception against Houston was the longest pass completion to any rookie. He was named to the PFWA All-Rookie Team.
Legal issues and suspension On June 3, 2012, Blackmon was arrested for
driving under the influence (DUI) of alcohol in
Stillwater, Oklahoma and was released from custody later that day. On April 20, 2013, Blackmon received a four-game suspension by the NFL for violating the league's substance abuse policy. In July, he underwent groin surgery. The Jaguars placed him on the physically unable to perform (PUP) list in which he missed training camp and the start of the preseason. Blackmon returned to the active roster and practiced on August 12, however he missed the first four games of the regular season due to his suspension. In his first game back, he caught 5 passes for 136 yards and a touchdown. In his next game, against the
Denver Broncos, he recorded 14 catches for 190 yards. On November 1, during the Jaguars' bye week, he was suspended indefinitely without pay for again violating the NFL's Policy and Program for Substances of Abuse. He would have been eligible to apply for reinstatement prior to the 2014 season. On May 2, 2014, Jaguars general manager
David Caldwell announced that it was unlikely that Blackmon would join the team for the 2014 season. Blackmon was arrested following a traffic stop on July 23, 2014, in
Edmond, Oklahoma for possession of marijuana. On October 1, 2014, Jaguars head coach
Gus Bradley said Blackmon had voluntarily checked into a 90-day program, adding that he had completed nearly half of his commitment, was doing very well and learning a lot. On May 10, 2015, Blackmon was reportedly denied reinstatement by the NFL, effectively ending his 2015 season. In August 2015, Caldwell said that the Jaguars did not expect Blackmon to play for them again, adding that the team had not heard from him for some time. That same month Blackmon was added to the
Toronto Argonauts' "confidential" negotiating list before the NFL disallowed it due to his suspension. On December 19, 2015, Blackmon was arrested for DUI in his hometown of Ardmore, Oklahoma. He pleaded guilty to DUI, and in August 2016 was sentenced to one year in jail, which was suspended pending the completion of one year of probation. He was also fined $1,000 and ordered to undergo 100 hours of community service. If he ever decided to play again, he would have to go through a two-month vetting process after applying for reinstatement. Despite this, Caldwell said at the time of Blackmon's arrest that the Jaguars had no intention of releasing him. Blackmon reportedly completed the terms of his probation in August 2017. On April 19, 2025, Blackmon was arrested for
public intoxication after being found passed out on the steps of Oklahoma State University's
Edmon Low Library. Blackmon was determined to be heavily intoxicated and also unable to answer police questions before being arrested. ==Career statistics==