"Jaro's not 100 percent right now," Islanders coach Jack Capuano said. "For us, it was an easy decision [to start Greiss]. Berube's just been with us for a few short days here.
"Jaro's progressing well. He's day-to-day and we'll see how he is as we move forward."
Halak was 38-17-4 with a 2.43 goals-against average and a .914 save percentage last season, his first with New York.
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