If you didn’t know any better, you would have thought 6abc’s Cheyenne Corin was standing on the concourse at Madison Square Garden.  The reporter with the local ABC affiliate in Philadelphia was swarmed by Knicks fans who had taken over the Xfinity Mobile Arena on Sunday, after the Knicks defeated the Sixers 144-114 in Game 4 to complete the sweep and return to the conference finals for the second consecutive season.  6abc’s Cheyenne Corin was swamped by Knicks fans after they swept the 76ers on Sunday. Cheyenne Corin/Instagram The scene around Corin has now gone viral, as the studio anchor tossed to the reporter in the field, and she was quickly mobbed by cheering Knicks fans. “Watch me get absolutely TROLLED by Knicks fans in Philly after the Sixers lost,” she wrote, accompanying a video of her news report from the arena that she posted to TikTok. She also shared a video on Instagram Stories of Knicks fans chanting “f–k Embiid” on the concourse after the Knicks win.…