THE Lions lost their 100pc record as a second-string side was narrowly beaten 14-12 by ACT Brumbies in Canberra today.
Tevita Kuridrani scored an early try to put the Super 15 leaders in front and Jesse Mogg kicked three penalties.
Stuart Hogg kicked two penalties but twice hit the post as a Lions side with five debutants struggled.
A raft of 57th-minute replacements, including Simon Zebo and Conor Murray, saw the tourists improve and Owen Farrell's two penalties brought them close but they fell short of a stirring win.
Wallaby Adam Ashley-Cooper, meanwhile, insists Brian O'Driscoll remains as dangerous as ever as the rivals prepare to meet for the first time in Saturday's opening Test between Australia and the Lions.
"I disagree that he's not the explosive centre of 12 years ago. He has the experience and ability to keep turning up," Ashley-Cooper said.
"He's a soldier and that's why he's one of the best centres in the world. He's an absolute freak and I'm looking forward to lining up against him for the first time. They've been consistent in the way they approach each game, relying on their big forwards to get over the gain line before using the ball out wide."