There was a Celtic player (Willie Garner) who I'm told scored 2 OG's on his debut. I think he only played 3 games for Celtic.
we had a similar situation but with a very different outcome at Charlton but I can't for the life of me remember who it was at the moment. player scored an own goal on each of his first 2 appearances but then went on to make hundreds of appearances and become a legend at the club. think it was either Gary Nelson or Stuart Balmer