United Kingdom, Feb. 10 -- Cardi B and Stefon Diggs have sparked split speculation after unfollowing one another on Instagram.

The 33-year-old rapper attended last weekend's Super Bowl to support the NFL star, 32, who took to the field with the New England Patriots.

While Diggs lost out in the Super Bowl, he may have suffered a similar fate romantically - because the wide receiver and the Please Me hitmaker aren't connected on Instagram anymore.

Some eagle-eyed fans were quick to spot the pair - who welcomed a baby boy, whose name is yet to be revealed, into the world in November - weren't following each other anymore, shortly after the Patriots were defeated by the Seattle Seahawks in the NFL spectacle.

Ahead of the Super Bowl, Cardi...