Soothing the nerves of legions of Rochester baseball fans, the Red Wings and Monroe County said they had reached agreement on a new long-term lease for Frontier Field.

"I'm pleased to announce Frontier Field will be the home of the Red Wings for many years to come," County Executive Cheryl Dinolfo said at a late-afternoon news conference Tuesday. "We have finally reached a deal that is good for all concerned."

The new lease, which has been agreed to in concept but not yet signed, will be for 10 years with a 10-year optional extension. No other details of the agreement were made public Tuesday.

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But Red Wings president and chief executive Naomi Silver and Dinolfo said the lease constituted a fair deal for the club, its fans and county taxpayers.

Silver, who joined Dinolfo at the news conference, said she didn't anticipate that fans would feel any significant financial impact as a result of the deal.

Asked about her objections to some of the county's demands, Silver declined again to provide any details, but said there had been compromises.

"We were both willing to give a little to make it work," she said.

The Red Wings have played in county-owned Frontier since the stadium opened in 1997, but their lease expires after this season.

In negotiations toward a new lease, the county had sought additional payment from the baseball club.

The Wings now share roughly $1 million a year in revenue with the county, but the Dinolfo administration had sought to double that amount, according to Wings officials.

Silver had balked at that request and another that the club let the county poke through the team's finances, and raised the possibility of the club leaving Rochester after this season.

The departure of a team that's been a fixture here since 1899 was never a likely scenario, but talks had taken on a sense of urgency because the old lease was about to expire. A firm decision about where the Wings would be based next year was needed so that planning for the 2018 season could begin.

"The timing was the element that was as concerning as anything," said Randy Mobley, president of the International League in which the Wings play. Mobley took part in several negotiating sessions over the last week.

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Silver said inconclusive discussions about a new lease had begun about three years ago with members of then-County Executive Maggie Brooks' administration. They resumed after Dinolfo took office in January 2016, she said, and began in earnest in January of this year.

Dinfolfo and Silver said details of the agreement would be released in the coming weeks. The lease must be submitted to the County Legislature for its approval, Dinolfo said.

SORR@Gannett.com