The Vegas Golden Knights suffered a major setback in Game 5 of the Stanley Cup Final on Thursday night when forward William Karlsson left the game in the second period after sustaining a major upper-body injury and did not return. However, reports are indicating that the promising forward of the team is not likely to return for the Stanley Cup final.

The Vegas Golden Knights lost a very important part of their run to the Stanley Cup Final and are now on the verge of getting eliminated by Carolina.

William Karlsson left Thursday's game in the second period and did not return.

The Vegas Golden Knights suffered a major setback in Game 5 of the Stanley Cup Final on Thursday night when forward William Karlsson left the game in the second period after…