Brian O'Driscoll says Australia captain James Horwill is "a lucky boy" after his citing for stamping was dismissed.
Horwill faced a disciplinary hearing for an incident involving Alun-Wyn Jones in the third minute of last weekend's 23-21 first Test defeat to the British and Irish Lions.
The incident left Jones needing stitches but Horwill was cleared to play in Saturday's second Test in Melbourne following a hearing which lasted almost four hours.
"He's a lucky boy. He knows it himself," O'Driscoll said of Horwill. "Whether it was intentional or not there's only one person who knows that."
O'Driscoll insists the decision to clear Horwill has not changed the way Warren Gatland's side will prepare for the all-important second Test, where a win would clinch their first series win since 1997.
"You get these rulings on occasion and you get the rub of the green but it doesn't change our attitude," he said.
"We want to go out and play the best Aussie team that we can do and he's definitely part of that."