Florida’s Aleksander Barkov, left, and Radko Gudas celebrate after the Panthers beat the Boston Bruins 4-3 in overtime Saturday night in Sunrise, Fla. Wilfredo Lee/Associated Press

SUNRISE, Fla. — Sam Reinhart scored 17 seconds into overtime to cap a late scoring flurry and give the Florida Panthers a 4-3 victory over the NHL-leading Boston Bruins on Saturday night.

After David Pastrnak scored to give the Bruins the lead with 48.6 seconds left in regulation, Florida captain Aleksander Barkov tied it with 2.4 seconds remaining.

The Panthers, the NHL Presidents’ Trophy winners last season, won for the first time this season when trailing going into the third period. Florida had been 0-17-1, while the Bruins were 26-0-1 when leading after the first 40 minutes.

Craig Smith and Charlie Coyle also scored for Boston and Jeremy Swayman made 34 saves.

The Panthers got goals from Brandon Montour and Sam Bennett. Alex Lyon, Florida’s usual starting goalie for its AHL team in Charlotte, stopped 36 shots.

Coyle was credited with the goal that gave Boston a 2-1 lead late in the second period after Bennett swatted the puck out of the air and into his own net.

Bennett redeemed himself at 8:29 of the third, tying it with a big wrist shot from the right circle. He was able to fool Swayman a bit as he looked to pass the puck, but instead wound up and let one go from 20 feet.

NOTES: Lyon made his fifth consecutive start in place of the injured Sergei Bobrovsky. … Boston forward Trent Frederic left the game in the first period because of an upper-body injury and did not return.