No one could believe their eyes — including Nazem Kadri.

The Colorado Avalanche’s 3-2 overtime win against the Tampa Bay Lightning in game four of the Stanley Cup playoffs on June 22 was as bizarre as it was thrilling, and the reaction of both boosters and haters on Twitter reflected that. But fans with opposing loyalties were united in a single respect: When Nazem Kadri, making his finals debut after undergoing surgery to repair a broken thumb suffered against the Edmonton Oilers, lofted a wobbler past Lightning goalie Andrei Vailevskiy, no one could believe their eyes.…