Rosario stuns Williams to capture WBA, IBF junior middleweight titles

Jeison Rosario ruined Julian Williams' homecoming on Saturday night.

In Williams' hometown of Philadelphia, Rosario stunned the heavily favored fighter to become the unified WBA/IBF junior middleweight champion.

Williams entered the fight as a 30-1 favorite, but Rosario bloodied him early on and he couldn't recover, falling to the Dominican after a referee stoppage in the fifth round.

Rosario moves to 20-1-1 following his shocking victory, and Williams' record drops to 27-2-1 after the loss.