Stan Bowman has ended his 12-year reign as general manager of the Chicago Blackhawks ©Getty Images

Stan Bowman has quit as general manager of the United States men’s ice hockey team following the publication of an investigation into the mishandling of sexual assault allegations against a former coach at Chicago Blackhawks.

Bowman stepped down as President and general manager of Chicago Blackhawks before resigning from his role with the US Olympic team.

Both resignations came after the findings of an independent investigation into the sexual assault allegations against former video coach Brad Aldrich during Chicago’s 2010 Stanley Cup run were published.

Law firm Jenner and Block was hired by Chicago to conduct the review after two lawsuits were filed against the National Hockey League (NHL) franchise.

The investigation found Bowman and other members of Chicago’s management team did not act promptly to address allegations that Aldrich had sexually abused a player on the team.

Aldrich pleaded guilty in 2013 to fourth-degree criminal sexual conduct involving a high school student and remains on Michigan’s sex offenders registry.

Danny Wirtz, chief executive of the Chicago Blackhawks, said the report was "both disturbing and difficult to read".

Chicago were fined $2 million (£1.45 million/€1.72 million) by the NHL as a result of the investigation.

Bowman ended his 12-year reign as general manager at the Blackhawks, saying his "continued participation would be a distraction" for the team.

Danny Wirtz, chief executive of the Chicago Blackhawks, said the report was
Danny Wirtz, chief executive of the Chicago Blackhawks, said the report was "both disturbing and difficult to read" ©Getty Images

"Eleven years ago, while serving in my first year as general manager, I was made aware of potential inappropriate behaviour by a then-video coach involving a player," said Bowman.

"I promptly reported the matter to the then-[team] President and chief executive who committed to handling the matter.

"I learned this year that the inappropriate behaviour involved a serious allegation of sexual assault.

"I relied on the direction of my superior that he would take appropriate action. Looking back, now knowing he did not handle the matter promptly, I regret assuming he would do so."

USA Hockey is also looking for a new general manager with 100 days to go before the Beijing 2022 Winter Olympics are due to open following Bowman’s exit.

"In light of what’s happened today, I think it’s in the best interests of USA Hockey for me to step aside," said Bowman.

"I’m grateful to have been selected and wish our team the very best in Beijing."

Pat Kelleher, executive director of USA Hockey, added: "We thank Stan for all his efforts.

"He’s been a major contributor to American hockey for a long time."