SYDNEY will unleash debutants Logan McDonald, Braeden Campbell and Errol Gulden on Saturday night, marking a blooding of talent that hasn't been seen at the AFL club since 1990.

Swans coach John Longmire told his squad on Tuesday that McDonald, Braeden Campbell and Errol Gulden will face Brisbane at the Gabba in round one.

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McDonald, a highly rated key forward from Western Australia, was the No.4 pick in last year's draft.

Academy products Campbell and Gulden were also snapped up in the same draft, with picks No.5 and No.32 respectively.

Sydney hasn't included three first-year debutants in its side since 1990, when Paul Kelly, Brad Tunbridge and Shane Fell started their careers.

Campbell and Gulden, who have played together since under-11s, join Isaac Heeney, Callum Mills and Nick Blakey in making a remarkably quick transition from the Swans' Academy to their AFL side.

"I'm just overwhelmed with joy and really happy I get to do it with two of my closest mates," Gulden said.

Campbell admitted he was shocked by the news, which Longmire broke in the SCG stands.

"To do it with Logan and Errol makes it even better," he said.

"Last year, it definitely made my draft year easier - knowing that Errol was beside my side.

"Prior to that, we've basically done everything with each other. So hopefully if I kick to him this weekend he'll know what to do with it."

McDonald suggested the call-up, flagged by Longmire while speaking with reporters on Monday, is yet to sink in.

"It's a bit surreal and also a bit of a shock," McDonald said.

"Making my debut this weekend, especially with two of my good mates, is an awesome feeling and I can't wait."

McDonald may find himself thrown into the deep end against Lions star Harris Andrews, an All-Australian defender in the past two years.

"It's a good challenge for us to go up to Brisbane and take on one of the best teams on their home deck," he said.