(CNN) -- Atlanta Braves pitching coach Roger McDowell apologized Wednesday after a fan and an attorney accused him of engaging in vulgar, homophobic and threatening behavior at a San Fransisco Giants and Braves baseball game.
The alleged incident was during batting practice on April 23 at the AT&T Park in San Fransisco.
"I am deeply sorry that I responded to the heckling fans in San Francisco on Saturday. I apologize to everyone for my actions," McDowell said in a statement.
His apology came the same day that Los Angeles attorney Gloria Allred sent a letter to Major League Baseball Commissioner Bud Selig, asking him to launch an investigation and urging "appropriate disciplinary action."
Allred represents Justin Quinn, 33, who attended the game with his wife and 9-year-old twin daughters.
Quinn and Allred accuse McDowell of making lewd and homophobic comments to male fans in the stadium bleachers. They also say he threatened Quinn when he complained to McDowell that kids could hear.
"When I go to a baseball game and take my family I expect a higher standard of conduct from the team and its coaches," Quinn told reporters. "Children should not be told that they do not belong at a ballpark."
Selig and the Braves both responded to the allegations of inappropriate behavior, saying they are concerned about the reports and working to gather more information.
"Although I do not yet have all the facts regarding this incident, the allegations are very troubling to me," said Selig. "After I have all the facts, I will make a determination of how to proceed."