A local agent has recommended Matthew Gordon and Ian Ramsey to the boss, and he will pay for the players' flights and accommodation in south Wales.
"The agent's very confident that, although young, they can break through into English football," said Jackett.
As reported earlier, defender Stuart Edwards will also return for a second trial spell after impressing Jackett last season.
The 20-year-old defender was recently released by Leeds United, and played some reserve games at the Vetch last April.
"He's a local lad. A right back or centre back, although he feels right back is his strongest position," Jackett added.
"He's had four years at
The Aussie pair, who have both featured in the Australian Premier League, will arrive in
Gordon is an attacking midfielder from
"I'm willing to back this agent and see whether over a week or two these two players have the type of potential that can take the club forward," added Jackett.