Vice-captain Dane Rampe has no doubt his side has plenty of improvement left after a disappointing loss to Hawthorn on Friday night ended a seven game winning streak.
In a glaring difference to the Swans of recent weeks the Hawks took 21 contested marks to just five.
Rampe said the defence simply got beaten in the air when it mattered most.
“It is something we pride ourselves on and something we have been really good at all year as a defensive unit,” Rampe told SEN Radio.
“That summed up our night which is the most disappointing thing because we have been good at it all year and it just shouldn’t happen.
“We pride ourselves in the air in particular with contested marks and we got beaten in that area.”
A mix of both injuries and poor form saw a number of star Swans not at their best in Friday night’s contest.
Rampe said if there was a positive to take it was the ability of his side to still challenge the Hawks despite being down.
“We can take solace from the fact we had a lot of players down on their best tonight and we only lost by six points,” he said.
“The Hawks are a good team despite their ladder position.
“While it is disappointing we didn’t get the result we had a lot of players down on their best.
“There is a silver lining and it is that we only went down by a couple of points but it still hurts.”