Sam Navarro-USA TODAY Sports

There have been plenty of sidebars between the Florida Panthers and Boston Bruins in this second-round playoff series.

Matthew Tkachuk and Jeremy Swayman has been bubbling since it started.

The Boston goalie and the Florida agitator have been going at it with one another since Game 1 of this series when Swayman took a whack at Tkachuk as he skated by the cage.

Swayman was also caught slashing Sam Reinhart as he passed by at the end of the second period in Game 3.

In the first period Sunday, not long after Pat Maroon offered a blanket invitation to anyone in a white Florida sweater for a dance, Swayman and Tkachuk mixed it up again.

As he did with Reinhart on Friday night, Swayman swung his stick into Tkachuk’s midsection as he skated by.

Tkachuk returned the favor.

Swayman then gave Tkachuk the old ‘come on’ move with his glove.

Tkachuk did not ‘come on.’

Perhaps Tuesday night in Sunrise, he will.

Of course, Linus Ullmark could be in net for the Bruins in Game 5.

“Not too many goalies are as active with the stick like the slashes, the extra stuff after,” Tkachuk told Hockey Night in Canada following the game.

“I probably should just stay away from that, try to put the puck on it and try and get some wins here. Got to focus on the task at hand, and that’s one more win.”

Florida won 3-2 on Sunday night, taking a commanding 3-1 series lead.

Boston, of course, had a 3-1 series lead against the Panthers last year in the first round before Tkachuk helped his team rally for a Game 5 win in Boston before winning the series in 7.

The Panthers are 3-0 when leading 3-1 in a playoff series; Boston is 0-25 when trailing 3-1.

More must-reads:

TODAY'S BEST
Oilers crush Panthers in Game 4, stay alive in Stanley Cup Final
Dodgers ace leaves game against Royals due to triceps tightness
Sam Mayer uses overtime restart to win Xfinity Series' return to Iowa
Liberty forward pushes herself into MVP conversation with big game vs. Aces
Tiger Woods makes big admission about his U.S. Open future
Cubs P 'Mike' Imanaga continues hot start vs. Cardinals
Celtics' All-Defensive guard reportedly could replace Kawhi Leonard on Team USA
Tee Higgins' contract decision adds pressure on Bengals in 2024
One-time Defensive Player of the Year open to reunion with former team
College baseball has become too regional for its own good
Three Padres prospects who should be untouchable in trade talks
Connor McDavid's history-making night helps Oilers stave off elimination
Astros scratch Justin Verlander as nightmare season continues
Watch: Oilers chase goaltender Sergei Bobrovsky from Game 4
Watch: Rockies third baseman takes advantage of Pirates laziness' to steal home
Pirates place young catcher on concussion IL
Watch: Game 4 of Stanley Cup Final gets off to chaotic start
Rockies 1B, former NL MVP diagnosed with internal oblique strain
NBA insider shares update on J.J. Redick's candidacy for Lakers HC job
Nationals hurler DJ Herz makes impressive history in third career start