BATAVIA, N.Y. -- Four preseason games remain too many for Roger Goodell.

The NFL commissioner on Monday reiterated his stance of wanting to reduce the preseason schedule at a time when the league and players' association have begun preliminary talks on a new collective bargaining agreement.

"I feel what we should be doing is always to the highest quality, and I'm not sure preseason games meet that level right now," Goodell said, while participating in Pro Football Hall of Fame quarterback Jim Kelly's 33rd charity golf tournament outside of Buffalo, New York.

"I'm not sure, talking with coaches, that four preseason games is necessary anymore to get ready for a season to evaluate players, develop players," he added. "There are other ways of doing that, and we've had a lot of discussions about that."

The NFL has long backed reducing the preseason schedule in exchange for expanding the regular season to as many as 18 games. Players have balked at the proposal by citing safety issues and a desire to receive additional compensation for playing a longer regular season.

Without revealing any details, Goodell called it "the best sign" that the league and union have already had discussions some 21 months before the CBA expires following the 2020 season.

In touching on several other topics, Goodell said the NFL has scheduled a series of conference calls with coaches this week to go over a proposal to expand replay reviews and allow the coaches to challenge pass-interference calls in the final two minutes.

Roger Goodell supported the decision to table a proposal backed by the Chiefs to change the overtime rule. AP Photo/Carolyn Kaster

Goodell backed a decision made at the owners meetings last month to table a proposal to change the overtime rule and require each team to have one possession regardless of what happens on the opening OT series.

"I don't know if I'd go for the fair possession," Goodell said, noting he likes "the sudden-death nature of the current rule" in which the game ends if a team scores a touchdown on its opening possession.

The change was pushed by the Chiefs. Kansas City lost last season's AFC Championship Game without getting the ball in overtime because the New England Patriots won the toss, received the kickoff and scored a touchdown.

"If you get the football to start the overtime period and you drive all the way down and score a touchdown, most coaches say, 'Hey, we deserved to lose. We didn't stop them.' That's part of football," he said.

Goodell also reiterated the league's preference in pushing for the Bills to build a new stadium to replace their existing facility, which was built in 1973. He said new stadiums play a key role in ensuring franchise stability by continuing to attract fans, who expect more modern amenities due to technological advancements made over the past two decades.

The Bills are six months into conducting a feasibility study on whether to build a new stadium downtown or remain at their existing site in Orchard Park, New York.