Scoreboard Vehicle Soccer

I’m trying to make a Vehicle Soccer game like Rocket League, I’m stuck on create a scoreboard to player 1 and player 2 goals.
All tutorial that I see on youtube is about a Character collecting something and then the score updates.
On vehicle game, I need to make the game recognize the ball that player 1 shoot at player 2 goal will give him 1 point on the scoreboard.
Any suggestion on how can I make it?