A three-time premiership-winning Tiger has been announced as NBL club South East Melbourne Phoenix's number-one ticket holder for the upcoming season, as well as holding a Leadership Consultant role for the organisation.

Trent Cotchin, who retired from AFL football this season after capping a glistening 16-year career headlined by captaining Richmond to three flag triumphs, was introduced on Wednesday morning as the Phoenix's newest fan at a club media event.

According to South East Melbourne, Cotchin will 'engage with the high-performance team' this season, possessing the title of Leadership Consultant as he offers valuable knowledge and guidance to the Phoenix's players and coaches.

"I'm thrilled to be a part of this growing organisation, I love what they're doing in the community and hopefully I can provide a little bit of leadership to a developing roster and coaching staff," Cotchin said on Wednesday.

"I'm really excited to be there on game day as a fan, I know that the Fire Pit is a great place for entertainment and I know my family will love it too."

South East Melbourne CEO Tommy Greer declared the new relationship a 'no-brainer', expressing his excitement at working in conjunction with the Tigers icon.

"Trent has had success, we are looking for our first championship, so we'd love to gleam any nuggets of knowledge he can share so we can convert that into wins, and hopefully titles," Greer said on Wednesday.

"He's also a family man, he's got three little ones with Brooke, so we can't wait for them to see the lights and action of the Phoenix games and become part of our family."

South East Melbourne tip-off their 2023-24 season against the Perth Wildcats on October 1.

Cotchin joined fellow Richmond flag hero Jack Riewoldt in AFL retirement in August, as well as duo Robbie Tarrant and Jason Castagna, who each retired from football earlier this year.