Sports News Roundup: Transgender fighter wins in historic pro debut; Atlanta United win MLS Cup beating Portland in final

Following is a summary of current sports news briefs.

Top swimmers challenge FINA with lawsuit

Three world-class swimmers have filed a lawsuit in the United States, challenging what they allege is the monopoly world governing body FINA has over the control of international competitions. The lawsuit, brought on behalf of three-times Olympic gold medalist Katinka Hosszu of Hungary and U.S. world champions Tom Shields and Michael Andrew, followed the cancellation of a new professional swimming event scheduled for Dec. 20-21 in Turin.

Esports: Head coach resigns after remarks about mental health

Brandon 'Saintvicious' DiMarco has resigned as head coach of esports team FlyQuest after a furious reaction to his comments deriding mental health conditions like depression. He had described depression, anxiety and attention deficit hyperactivity disorder as "made up bullshit".

NHL roundup: Lightning erupt for seven goals

Steven Stamkos scored twice in a span of a little more than 10 minutes in the first period Saturday night to initiate an outburst by the Tampa Bay Lightning, who rolled to a 7-1 win over the visiting Colorado Avalanche. The win was the sixth straight and the ninth in the last 10 games (9-1-0) for the Lightning, who have the most points in the NHL with 47. It was the fourth time this season Tampa Bay has scored at least seven goals and the second time it won a game by six goals (8-2 over the Columbus Blue Jackets on Oct. 13).

Transgender fighter wins in historic pro debut

Patricio Manuel made boxing history on Saturday night, becoming the first transgender male to fight professionally in the United States. Manuel, 34, beat Hugo Aguilar by unanimous decision in Indio, Calif., on a Golden Boy Boxing fight card.

NBA roundup: Celts win by 56, make history with Bulls

Daniel Theis scored a career-high 22 points, and the Boston Celtics opened the game with 17 consecutive points while rolling to an easy 133-77 victory over the host Chicago Bulls on Saturday night. It was the Celtics' largest margin of victory in franchise history. Jaylen Brown scored a team-best 23 points off the bench, and Jayson Tatum made all four 3-point attempts while scoring 18 points as the Celtics won their season-best fifth straight contest. Terry Rozier added 15 points, Kyrie Irving and Semi Ojeleye each scored 13 and Marcus Morris tallied 12 for Boston.

Report: GM McKenzie to leave Raiders at season's end

The Oakland Raiders and general manager Reggie McKenzie will part ways after the season ends, according to a CBS Sports report Sunday. Head coach Jon Gruden, in the first year of a 10-year, $100 million contract, and McKenzie apparently haven't viewed players the same way this season.

Atlanta United win MLS Cup beating Portland in final

Atlanta United FC used a distinctly Latin flair to win the Major League Soccer (MLS) Cup final on Saturday, beating Portland Timbers 2-0 to bring the city a rare professional sporting trophy. In just their second year in the league, Atlanta capped off a spectacular rise by taking the final step in front of 73,000-plus festive fans at Mercedes-Benz Stadium.

Oklahoma's Murray beats out Tide's Tagovailoa for Heisman

For the second consecutive season, an Oklahoma quarterback won the Heisman Trophy when Kyler Murray was announced as the winner Saturday night at the PlayStation Theater in New York City. Murray beat out two other quarterbacks -- Alabama's Tua Tagovailoa and Ohio State's Dwayne Haskins -- for the award.

Heisman winner Murray apologizes for homophobic tweets

Kyler Murray celebrated his Heisman Trophy win in New York on Saturday night, but not long after the Oklahoma quarterback found himself playing defense. Murray issued an apology via Twitter for using homophobic slurs in social media messages that remained active into the early hours of Sunday morning. Those Twitter posts have since been deleted following Murray's statement.

Reports: Hunt to begin counselling

While the NFL mulls further punishment for Kareem Hunt, the former Kansas City Chiefs running back is seeking counseling for alcohol and anger issues, according to multiple reports. The league is considering three different off-field incidents involving Hunt, the bombshell coming when TMZ released a video showing Hunt pushing and kicking a woman in Cleveland last February. The league reportedly is expected to suspend Hunt for more than six games.

(With inputs from Reuters)