DYNAMIC forward TOM Papley believes the sky is the limit as Sydney seeks to re-establish itself as a perennial finalist and be the AFL upstart of 2021.

The Swans' clash with Brisbane at the Gabba on Saturday night will mark Papley's 100th game in the competition, ensuring he joins grandfather Max in having his name on a locker at the club.

Papley debuted in 2016 and played in that year's Grand Final, while he also played finals in 2017 and 2018.

The Swans have since finished 15th and 16th since, with 2019 marking just the fourth time in 24 consecutive years that they failed to qualify for finals.

"It stings a bit," Papley said.

"We certainly think we can make it this year, back into finals. We'll do everything we can.

"We've got a nice group coming through ... we've probably had the most number of debutants over the last two or three years, which is exciting."

That trend will continue this weekend, when Logan McDonald, Braeden Campbell and Errol Gulden start their AFL careers.

"I know in 2016 there were three debutants (in round one of) that year and we went on to play in a grand final," Papley said.

"So anything can happen.

"Just because we have three debutants and a young list, it doesn't mean we can't go deep in finals and have that belief."

The Swans need look no further than the Lions to see how the wheel can turn.

Brisbane are widely expected to finish in the top four for a third year in a row.

Coach Chris Fagan has achieved significant improvement throughout his squad since a 15th-placed finish in 2018.

Papley also highlighted the example of powerhouse Richmond, who finished 13th prior to winning the 2017 flag.

"It can change very quickly," he said. "It's a good thing. It's a clean slate every year, which we love about footy."

The 24-year-old, having played essentially as an undersized key forward for much of 2020 because of the Swans' injury crisis, can't wait to work in tandem with McDonald, Sam Reid and fit-again star Isaac Heeney.

"I love a big key forward ... it's good, not as much pressure," Papley said. "I've got a good relationship with Logan, we're pretty close."

The return of four-time Coleman medallist Lance Franklin, potentially as early as round two, will also add fuel to the Swans' search for goals.

"He's obviously going to help Logan and helps me a lot as well," Papley said of Franklin.