BUFFALO, N.Y. -- The Buffalo Sabres dropped their lawsuit against the federal government after immigration officials reversed course by approving the team's strength and conditioning coach's petition for a green card.

"The matter has been resolved amicably between both parties," with Ed Gannon receiving approval for an EB-1 visa, the Sabres announced in a text message Wednesday.

The Sabres sued U.S. Citizenship and Immigration Services in May by alleging officials wrongly denied the team's visa petition for the British-born coach.

The announcement came a week after the Sabres' lawyer notified the U.S. District Court in Buffalo that the team was voluntarily dismissing the suit, with each side agreeing to bear their own costs and fees.

The Sabres accused immigration services of misstating facts and arbitrarily failing to follow its own rules in denying a green card to Gannon. They argued the decision potentially subjected the team "to substantial financial harm and disruption in developing [its] athletes."

Gannon was hired by the Sabres in 2015 while the team was beefing up its player development staff. He previously spent 10 years as the lead strength and conditioning coach of a professional rugby club, the Leicester Tigers.

The Sabres filed the application for permanent residency on Gannon's behalf in October. To be granted a green card, Gannon had to demonstrate that he was at the top of his field, and the Sabres argued that he proved his abilities under USCIS' criteria.

The denial of Gannon's petition came amid efforts by the Trump administration to limit legal immigration. A report last year by the Migration Policy Institute concluded that USCIS had become "increasingly active in immigration enforcement" and that the agency was intentionally slowing down adjudication of immigration benefits applications.