Thomas Greiss' League-best save percentage is about to be put to the test.
New York Islanders goalie Jaroslav Halak will miss at least six weeks because of an injury sustained Tuesday, opening the door for Greiss to take on No. 1 goalie duties for the final month of the regular season. Greiss (54 percent owned in Yahoo) is 18-6-3 with the best save percentage (.930) in the NHL among goalies with at least 20 games played.
Fantasy Spin: Greiss becomes must-add goalie
Islanders' efficient backup to be tested with Halak out
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