Mixed martial arts star Conor McGregor expressed regret Thursday for a backstage melee at a Brooklyn arena, and is in plea negotiations to resolve charges in the case.

McGregor, a 29-year-old Irish fighter, and co-defendant Cian Cowley remained free on bail after a brief court appearance.

Assistant District Attorney Janet Gleeson said the case hasn’t been presented to a grand jury for possible indictment because of the plea negotiations signaling interest from all sides in resolving the matter swiftly.

BASEBALL

EASTERN LEAGUE: Josh Ockimey went 2 for 3 and drove in two runs as the visiting Portland Sea Dogs (23-41) downed the Richmond Flying Squirrels (33-30), 4-2, in an Eastern League game in Richmond, Virginia.

Mike Shawaryn pitched six scoreless innings for Portland and improved his record to 3-5 with a 3.12 ERA.

REGENCY MORTGAGE: Luke Knowles hit an RBI double in the third inning, Ryan Joyce had an RBI single in the sixth, and Nick Galecuia struck out five over seven innings pitched as Thirsty Turf of Cheverus (1-0) used a four-run fourth inning to down Tucker Ford (1-1) 5-2 at Yarmouth.

Joyce finished with three hits, one RBI and two runs.Will Cox led Tucker Ford with three hits.

Khyler Hart, Jackson Bean and Bailey Walker singled in runs as Bonny Eagle used a three-run fourth inning to erase a 3-1 deficit and pull away from Bruno’s Tavern for a 4-3 victory in Game 1 at Standish.

Hart finished with two hits, an RBI and a run.

Griffin Buckley hit a single, a double and scored.

In the second game, Nathan Morse hit a two-run triple in the fifth, and Bobby Faucher had a three-run double in the sixth as Bonny Eagle (4-0) scored eight runs in the fifth and sixth innings to pull away from Bruno’s Tavern (3-2) for a 10-5 victory.

Faucher finished with two hits and four RBI. Corey Labrecque added two hits, two RBI and three runs.

HOCKEY

DUMOULIN SKATE: Fans will get a chance to skate with Biddeford native and Pittsburgh Penguins defenseman Brian Dumoulin on Saturday in a charity event benefiting The Dream Factory, a nonprofit organization that helps children with chronic illnesses.

The event – Skate for Dreams with Brian Dumoulin – will start at 11:15 a.m. at the University of New England’s Harold Alfond Forum. Dumoulin, with several local coaches, will lead clinics for youth-age groups. He also will take part in a 30-minute open-skate session open to all ages. For more information, go to dreamfactoryinc.org/chapters/portlandmaine

NECBL: Nick Howie was 2 for 3 and had an RBI for the Mainers (5-2) in a 5-2 victory over the Nighthawks (5-2) at Hartford, Connecticut.

Jake Alu, Jonathan White, and Harrison Salter each added an RBI for Sanford.

Alvin Melendez and Matt Tarabek each drove drove in a run in the third inning to tie the score for Upper Valley at 2-2.

TENNIS

PLAYER PUNISHED: Federico Coria of Argentina was banned for eight months and fined $10,000 for anti-corruption offences.

The penalties were made by Jane Mulcahy, an independent anti-corruption official who ruled three weeks ago that Coria failed to report corruption approaches in July and August 2015, and failed to cooperate with an investigation.

COLLEGE

FOOTBALL: The University of Maryland asked an external group to review whether proper protocol was followed in the treatment and care of offensive lineman Jordan McNair, 19, who was hospitalized after a team workout and died two weeks later.

FOOTBALL

NFL: Left tackle Nate Solder of the New York Giants tweaked a knee after being bumped during a helmet-swinging scuffle between defensive tackle Damon Harrison and rookie guard Will Hernandez.

Solder, who left the Patriots to sign a four-year, $62 million contract in March, walked away from the fight on the third and final day of the minicamp and sat on the grass after Harrison and Hernandez were separated.

New Orleans’ No. 1 draft choice, defensive end Marcus Davenport, will undergo minor thumb surgery now that the team has completed its mini-camp.

GOLF

LPGA: Kelly Shon played her final six holes in 6 under for an 8-under 64 and a share of the first-round lead with So Yeon Ryu in the Meijer LPGA Classic at Grand Rapids, Michigan.

Anna Nordqvist, Su Oh and Celine Herbin shot 66, and Sophia Popov, Caroline Masson and Lee-Anne Pace were at 67.

– Staff and news service report