Going into Saturday's action, all four second round series are four games deep. In the Western Conference, Dallas-St. Louis and Nashville-San Jose are both tied at 2-2 while Pittsburgh and Tampa Bay have 3-1 leads on Washington and the Islanders respectively.
We'll see three of the upcoming Game 5s today as St. Louis will visit Dallas at 1:00 p.m. ET, Washington will host Pittsburgh at 7:15 p.m. ET, and Nashville will play in San Jose at 10:00 p.m. ET.
Before that happens though, let's look at Friday's contest:
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LIGHTNING 2 ISLANDERS 1 (OT) (Tampa Bay leads 3-1)
The Islanders outshot Tampa Bay 16-6 in the first period, but emerged from that frame with just a 1-0 lead.
Kyle Okposo accounted for New York's marker. He now has two goals and eight points in 10 postseason contests.
In the second period there was an unusual incident as Islanders goalie Thomas Greiss' skate blade broke and he consequently had to get off the ice. Rookie Jean-Francois Berube replaced him for 4:47 minutes and turned aside two shots before Greiss was inserted back into the contest.
Greiss went on to stop 20 of 22 shots Friday night, but suffered his third straight loss. He has a 5-5 record, 2.32 GAA and .928 save percentage in the 2016 playoffs.
For Berube this was his first career playoff appearance. He posted a 2.71 GAA and .914 save percentage in seven regular season games.
The Islanders maintained their 1-0 lead until 7:49 of the third period when Nikita Kucherov found the back of the net for the eighth time in nine postseason games. He leads all players in goals so far in the playoffs.
Tyler Johnson assisted on Kucherov's game-tying marker to extend his point streak to three games. In nine playoff contests, Johnson has four goals and 12 points.
Overtime proved to be short-lived as Jason Garrison scored just 1:34 minutes into it. It was his first goal and fifth point in nine playoff games.
Andrej Sustr assisted on the goal after going scoreless in his previous eight 2016 postseason contests.
Despite the Islanders' commanding lead in shots on goal in the first period, the Islanders only ended up with a 28-24 edge in that regard.
Ben Bishop turned aside 27 of those Islanders' shots, making this the second time in the last three games that he's held New York to just one goal. He now has a 7-2 record, 2.12 GAA, and .931 save percentage in nine postseason starts.
New York did have a sizeable 45-29 edge in hits, with Islanders forward Matt Martin accounting for a game-high 10 of them. That brings him up to a league-leading 60 hits in 10 games.
With one more win, Tampa Bay will reach the Eastern Conference Final for the second straight year. The Lightning have never gone that deep into the playoffs in back-to-back years before.