By Jelani Scott Irving, who remains unvaccinated, has not played in Brooklyn this season. View the original article to see embedded media. Kevin Durant’s 53 points guided the Nets to a marquee win over the Knicks on Sunday, but all eyes were focused on a unique situation taking place on the sidelines as the game began. While Brooklyn handled business in a battle of the boroughs, Kyrie Irving, still barred from playing in home games despite a change in the city’s vaccine mandate, watched on as a high-profile spectator rather than on the bench with his team. Irving, who remains unvaccinated, has…