Mine was a weird one Tyrone. It was literally seconds into the game. They kicked off, passed it back to their centre half, and I closed him down. Inexplicably, instead of clearing it, he turned and passed it back to their keeper but there had been a downpour just before the game and the ball slowed up so I nipped in and knocked it past the onrushing goalie and scored, but his momentum took him feet first right into me and snapped my shinbone (I had pads on too!).
Shortest season ever for me, it only lasted about 15 seconds, but I did score a goal I suppose!