When Angelo Mathews caught the ball Bravo had hit on the boundary line, lost his balance, threw the ball in the air, crossed the boundary line, (and then knowing the ball was outside the line) jumped Michael Jordan style, thumped the airborne ball back in to play, fielded it and threw it back, the third umpire didn't award West Indies the "6" they were expecting. Instead, they only got 3 runs which the batsmen had run.
If this ruling stands, would the fielders now cross the boundary line when they see the ball going out for 6 and repeat what Angelo did? It would be interesting if this new fielding innovation is seen again.