India, June 18 -- The second trailer for Spider-Man: Brand New Day is finally here and while it gave fans plenty to talk about, one thing remains as mysterious as ever: Sadie Sink's character. The Stranger Things star is nowhere to be seen in the latest footage but that hasn't stopped Marvel fans from putting together theories.

In fact, the trailer may have added even more fuel to the biggest rumour surrounding Sink's MCU debut.

Spider-Man: Brand New Day: Sadie Sink Playing Jean Grey?

Around the 58-second mark of the trailer, a massive concussive blast ripples across Manhattan. At first glance, it's just another dramatic Marvel moment. But eagle-eyed fans noticed something interesting.

Marvel also teased it, stating, "First look at Sa...