Sidley haven't given up on title
United, who go into the game at full strength, are currently ninth in Sussex Division One, but Heritage thinks his team should not be ruled out of the running.
"I think the league is wide open this season because there has been a few surprise results," he said. "I think if we put a run together we will be right back in there and hopefully we can start on Saturday."
Bexhill United play host to Lingfield in Division Three with no injuries and full of confidence after their amazing 13-0 win last week.