The Daily Mirror reports that the Tigers star – who has missed a large chunk of the season with an Achilles problem – may now miss Sunday's Zurich Premiership match against the Sharks, which had been pencilled in as his comeback game, after bruising his heels in the fall.
"You couldn't make it up," said Healey. "Just when I get my Achilles 100 percent right I fall off a ladder from roof height, pretending to be a fireman trying to save a cat."
In Healey's absence, youngster Sam Vesty and Australian Craig McMullen have been deputising at fly-half for Leicester, with Tom Tierney and Jamie Hamilton playing scrum-half.
With England's back-up fly-half Charlie Hodgson almost certainly out of the World Cup, and first choice Jonny Wilkinson's persistent shoulder injury showing no sign of going away, a fit Austin Healey would be a bonus to coach Clive Woodward, especially with his ability to play at wing and scrum-half as well as in the No.10 shirt.