Strike Box/Titans Fighting incident

On February 6, 2009, Bossé fought James Thompson at Strike Box/Titans Fighting's inaugural event in Quebec, Canada. The event was originally scheduled to be conducted under Strike Box's own rules where only boxing, takedowns and standing submissions were allowed, but the rules were not accepted by the province's athletic commission in time for the event. It was therefore instead conducted under MMA rules. Before the event some fighters agreed to fight under Strike Box's proposed rules as a gentleman's agreement, though the referee in charge would not have any choice but to allow ground fighting were it to happen. Thompson, who later claimed to be unaware of the agreement, proceed to take down, mount and ground and pound Bossé - as allowed under MMA rules - after Bossé went for a standing guillotine choke at the start of the fight. This caused the attending audience to boo Thompson and the referee, unaware of that the fight was technically conducted under MMA rules. Beer cans and eventually chairs were then thrown into the ring, prompting referee Yves Lavigne to stop the match declaring it a no contest.^[6][7]

Ultimate Fighting Championship

Bossé was expected to make his promotional debut against Ryan Jimmo on April 16, 2014, at The Ultimate Fighter Nations Finale. However, Bossé was forced to pull out of the bout citing an injury.^[8] He was replaced by Sean O'Connell.^[9]

Bossé faced Thiago Santos on June 27, 2015, at UFC Fight Night 70.^[10] He lost the fight by knockout in the first round.^[11]

Bossé faced James Te Huna on March 20, 2016, at UFC Fight Night 85.^[12] He won the fight via KO in the first round.^[13]

Bossé next faced Sean O'Connell on June 18, 2016, at UFC Fight Night 89.^[14] Bossé was awarded a unanimous decision victory.^[15] The back and forth action earned both participants Fight of the Night honors.^[16]

Bossé was expected to face Jared Cannonier on July 7, 2017, at The Ultimate Fighter 25 Finale.^[17] However, Bossé was removed from the fight just days before the event and was replaced by promotional newcomer Nick Roehrick.^[18]

Bossé later announced that he would pursue a boxing career, and has not fought in mixed martial arts since.^[19]

Bossé vs. Cuellar Cabrera

Steve “The Boss” Bossé made his professional boxing debut as part of the third installment of the 2017-2018 “CHRONO AVIATION Boxing Series 2017-2018”, February 15th at the Cabaret du Casino de Montréal. Bossé faced the Bolivian heavyweight Julio “Conceali” Cuellar Cabrera (12-6-0, 11 KOs), in a six-round bout. Bossé won via second-round KO.^{[20] [21]}

Pascal vs. Bossé

On 9 May, it was announced that Bossé would fight Jean Pascal on 29 June 2018.^[22] The fight was postponed to take place on 20 July.^[23] Bossé tried to apply pressure on Pascal but was dropped once in round 3. Pascal continued to land heavy shots eventually dropping and stopping Bossé in eight round. It was reported that Bossé had suffered an injury during training on his right bicep and also suffered a broken jaw during the fight.^[24]

Hockey awards

Ligue Nord-Américaine de Hockey

• 2003-2004: Championship with the Dragons de Verdun
• 2006-2007: Championship with the Summum-Chiefs de Saint-Jean-sur-Richelieu