Sydney coach John Longmire has warned his players not to take Brisbane lightly despite sitting 10 spots higher than the Lions on the ladder.
Brisbane have won three of their past four matches including a two-point victory over third-placed West Coast in Round 10.
With the Lions having only lost to Hawthorn in the past month, Longmire is wary of Michael Voss' side as the Swans prepare for Saturday's game at the SCG.
"Their form is as solid as anyone going around in the competition over the last month," Longmire said.
"You know, they're playing really good footy."
While Simon Black continues to impress for the Lions - the veteran midfielder has won the most contested possessions of any Brisbane player over the past fortnight - Longmire believes they are about more than one player.
"Look at Rockliff, Redden and those fellas that are playing in the midfield now, playing big roles," Longmire said.
"Black's still an important part but he's not the only part of their midfield."
Speaking to the media on Monday, Longmire commended Shane Mumford and Adam Goodes for their form after coming back from injury.
Ruckman Mumford impressed his coach with his hard work when the ball hit the ground.
"We were looking at Shane's game again on the tape and he played better than what I thought he did after the game," Longmire said.
"So he's certainly getting better every week now."
After subbing Goodes off against Geelong in Round 13, Longmire believed the Sydney forward looked much better against the Giants.
"To kick a couple of goals...the longer the game went, the better he (Goodes) felt and after the game he felt terrific and certainly today he's a lot better than he was last week," Longmire said.
Longmire expects Daniel Hannebery, who rolled his ankle against GWS, to be fit against the Lions.
Sydney's coach claimed the 21-year-old was the main injury concern from Saturday night's game against the Giants.