Two seasons ago Leigertwood crashed in the goal which secured a 1-0 victory over Nottingham Forest and sent the Royals up to the Premier League.
The popular 31-year-old has since spent a year on the sidelines with an ankle problem, but he is finally back in action with Reading currently holding on to the final play-off spot with two games to go.
"It could happen, anything is possible," he said.
"We are in a good position, it is in our hands, and if there is something I can do - whether it's scoring a goal, making a challenge, clearing one off the line - it all counts.
"To play any part in this run-in and in trying to get us back to Wembley would be a great achievement."