PHILADELPHIA -- Jason Chimera scored the go - ahead goal early in the second period .
Thomas Greiss made 33 saves to lead the New York Islanders to a 3 - 1 victory over the PHILADELPHIA   on Thursday night .
PHILADELPHIA -- Jason Chimera scored the go - ahead goal early in the second period and Thomas Greiss made 33 saves to lead the New York Islanders to a 3 - 1 victory over the Philadelphia Flyers on Thursday night .