[2] Browne later pleaded guilty to criminal contempt in the second degree on January 19, 2019, and was sentenced to 26 sessions of the batterer's intervention program and a conditional discharge with a full order of protection.
[4] After competing at the 2012 Summer Olympics, where he lost in the first round to Damien Hooper,[5] Browne made his professional boxing debut at the age of 21, on November 9, 2012, on Friday night as part of a Golden Boy Promotions card.
The fight took place at the Fantasy Springs Casino in Indio, California, against 33-year-old Codale Ford (2–0) in a scheduled 4-round bout.
Also on the undercard were future prospects making their professional debuts including Dominic Breazeale, Terrell Gausha, Errol Spence Jr and Rau'shee Warren.
[6][7][8] Browne fought again a month later in December producing a first-round knockout win over Ritchie Cherry on the undercard of Amir Khan vs. Carlos Molina.
[10][11][12][13][14] On April 19, 2014, Browne was scheduled to fight at the DC Armory in Washington against 36 year old former USBA light heavyweight champion Otis Griffin (24–15–2, 10 KOs).
[18][19] In December 2014, Browne fight at the Pechanga Resort & Casino in Temecula, California, against 40-year-old veteran George Blades (23–6, 16 KOs).
The fight took place in front of 12,300 fans at the Barclays Center on the undercard of Danny Garcia vs. Lamont Peterson.
[23] Pryor Jr. retired on his stool at the end of round 6, giving Browne his 11th stoppage win in 14 professional fights.
[26][27][28] Four months later in September, Browne fought Spanish boxer and former WBA light heavyweight champion Gabriel Campillo (25–7–1, 12 KOs) at the Foxwoods Resort in Ledyard, Connecticut.
[30][31][32] Browne returned again three months later in December against Mexican boxer and former IBO super middleweight title challenger Francisco Sierra (26–9–1, 23 KOs).
[33] Browne controlled the fight from the opening bell, eventually stopping Sierra in round 4 via technical knockout.
[41] On January 3, 2017, it was announced that Browne would step up once again, this time against former world title challenger Thomas Williams Jr. (20–2, 14 KOs) on February 18.
[44] Following the fight, Browne called out WBC and Lineal light heavyweight champion Adonis Stevenson, who had previously knocked out Williams.
[45] On May 23, 2017, it was announced that Browne would fight 35 year old Sean Monaghan (28–0, 17 KOs) at the renovated Nassau Coliseaum in Uniondale, New York, on July 15, 2017.
Original plans for was for Monaghan to challenge WBC and Lineal champion Adonis Stevenson, however he decided to fight Andrzej Fonfara instead.
Browne continued at the same pace in the second round landing a right hook which pushed Monaghan back.
[48] In November 2017, the WBC ordered Browne vs. Oleksandr Gvozdyk (14–0, 12 KO's) as an eliminator for their light heavyweight title.
Ntetu's sole defeat came in June 2016 against future WBC super middleweight champion David Benavidez.
Ntetu beat the count but ended up taking some hard shots to the head from Browne until referee Arthur Mercente stepped in and halted the fight.
[54] On March 18, a deal had been agreed for Kovalev to defend his WBO light heavyweight title against Browne at the Hulu Theater at Madison Square Garden in New York City on HBO.
[59] On July 5, 2018, it was announced that Browne would return to the Nassau Coliseum in Uniondale, New York to appear on the undercard of Devon Alexander vs. Andre Berto on August 4.
Despite getting dropped in the fifth by Castillo, Browne managed to outbox his opponent through most of the fight, and earned a unanimous decision victory, 98–91, 98-91 and 97–92 on the scorecards.
[64] In November 2018, Browne called out Badou Jack (22–1–3, 13 KOs) to fight him in what was an 'open division' as both traded words on Instagram.
[65][66] According to RingTV.com on November 26, a deal was close to being reached for Jack and Browne to fight on the Manny Pacquiao vs. Adrien Broner Showtime PPV undercard on January 19, 2019.
Pascal managed to turn the fight around in the fourth round, dropping Browne with a perfectly timed right hook.
In the eighth round, Browne was severely cut after a clinch, and the ringside physician immediately stopped the fight.
[79] On August 20, 2021, the WBC ordered the unified light heavyweight champion Artur Beterbiev to defend his title against Browne.
[80] On September 15, the WBC granted them an additional eleven days to come to terms, before a purse bid would be held.
Browne lost the fight by a ninth-round knockout, failing to raise in time to beat the ten-count after being dropped by a left uppercut.