The Islanders mounted a late comeback before Bo Horvat scored to beat the Penguins 4-3 in a shootout, cementing a resilient comeback victory with half the Islanders blue line still missing and

Bo Horvat scored the only goal in a shootout and the New York Islanders rallied past the Pittsburgh Penguins 4-3 on Tuesday night.

Bo Horvat scored the only goal in a shootout and the New York Islanders rallied past the Pittsburgh Penguins 4-3.

Remove all the context — the injuries, the Islanders’ record, the desperation inherent in calling up someone with just four professional games under his belt — for just a second, because on Tuesday morning, some nine hours before taking his rookie lap, Isaiah George could not stop beaming.

Sure, he’s a 20-year-old making his NHL debut just five games into his professional career and with his parents in the crowd at UBS Arena. And, sure, Isaiah George, recalled from the Islanders’ AHL affiliate in Bridgeport earlier in the day,