Former Australia back Michael Lynagh admits that a British and Irish Lions whitewash of the Wallabies is a possibility.
Robbie Deans has had to count the cost of a number of serious injuries in Super Rugby this season, with lock Sitaleki Timani the latest to be ruled out.
Openside flanker David Pocock and hooker Tatafu Polota-Nau have already been sidelined, whilst doubts remain over the participation of the likes of Scott Higginbotham, George Smith, Digby Ioane and Kurtley Beale.
Despite the simplicity of the Lions opening fixture against the Barbarians, Lynagh was impressed and believes the depth of their squad and the lack of preparation time for Australia could result in a heavy series victory.
"The Lions could win the series 3-0, yes," said Lynagh to talkSPORT.
"Australian teams in the Super 15 tournament have had quite a few injuries to key players, people like Scott Higginbotham, Digby Ioane and a number of other players who would have appeared in the Test series.
"That's hurt Australia and their problem is that they don't have a huge amount of depth.
"They have 20-odd players who are strong but as soon as you scratch the surface, they become a bit thin.
"Having seen the Lions beat the Barbarians in Hong Kong last weekend, albeit against a weaker opposition, they are a very strong squad with lots of seasoned players.
"They are physically big and even as an Australian, I'm starting to get a little bit worried about the Test series coming up.
"We talk about how hard it is for the Lions to come together with all the different nations and the fact they have to gel quickly, but Australia have no warm-up matches.
"They might have played together before, but sometimes people are injured and that sometimes means that they won't have played together.
"So despite the Lions saying that it's difficult, they will be better prepared than Australia."