Melbourne Victory has secured the services of Central Coast winger Mitch Austin, while Victory forward Connor Pain has joined the Mariners.
Both players were granted an early release from their contracts to pursue new opportunities for the upcoming Hyundai A-League season.
Austin, 25, had a breakout season for the Mariners in 2015/16, playing 23 out of 27 games (22 as a starter) and scoring five goals.
"We're excited about what Mitch can bring to Melbourne Victory next season," said Victory head coach Kevin Muscat.
"He has great speed and skill, a tremendous work ethic and he has demonstrated an ability to score goals.
"He thrived in his first season in the A-League, and with more experience we expect he will become an even better player."
Austin, who was born in England, spent his junior years playing for Manly United in Sydney.
He returned to the UK in 2010 and had stints with Stalybridge Celtic and Cambridge United, before signing for the Mariners in June last year.
"I appreciate the chance the Mariners gave me to play in the A-League last season, and for allowing me to explore other opportunities to further my career," Austin said.
"I'm thrilled about the opportunity to represent Melbourne Victory, and I'm determined to prove myself to my new coaches and team-mates.
"I look forward to putting in the hard work in the pre-season and playing my role to help Victory return to the finals next season."
Pain made 53 Hyundai A-League appearances and scored three goals for Victory over four seasons, after being signed from the club's youth program.
"I would like to thank Connor for his contribution to Melbourne Victory," Muscat said.
"Connor always conducted himself in a professional manner, and played an important role in the success this club has achieved.
"We wish him all the best for the rest of his career."