Winless against them for more than a year, the New York Islanders are suddenly a thorn in the side of the Pittsburgh Penguins.
Indeed, if the New York Rangers hang on to win the Atlantic Division for the Eastern Conference's No. 1 seed, they might just owe a hat-tip to their in- state rivals to the east.
Kyle Okposo and Josh Bailey scored two goals apiece and the Islanders finished off a home-and-home sweep of the Penguins with a 5-3 win on Thursday night.
The Islanders also won 5-3 in Pittsburgh on Tuesday -- their first win in the Steel City since 2007 and first victory over the Penguins since last season.
The Penguins, who have now suffered three regulation losses in their last four games after going more than a month without one, remained five points behind the idle Rangers with five games remaining.