Sabres end Islanders' winning streak at 3

Sabres forward Jason Pominville is stopped by Islanders goalie Robin Lehner during the first period on Tuesday in Buffalo. Photo Credit: AP/Jeffrey T. BarnesBUFFALO – They can’t all be pristine performances with airtight goaltending. But because the Islanders have had way more good games than bad, they have some leeway in their playoff push.

Not much, though, with teams starting to play more divisional games entering the final quarter of the season. So, while the first-place Islanders were struggling through a 3-1 loss to the Sabres on Tuesday night at KeyBank Center despite only allowing 10 shots through the first two periods, the Capitals and Blue Jackets, their closest pursuers in the…