SYDNEY, Nov 17 (Reuters) - Australia's chief competition regulator said on Tuesday that he would "no doubt" investigate a A$9 billion ($6.39 billion) offer for port and rail giant Asciano Ltd AIO.AX from smaller rival Qube Holdings Ltd QUB.AX .
In an interview a day after Asciano granted due diligence to Qube, Australian Competition and Consumer Commission chair Rod Sims told Reuters that "I would have thought everybody acknowledges that we do need to look at the Qube transaction".