Former All Blacks prop Carl Hayman predicts New Zealand Rugby will face an on-going battle to keep its top players from chasing the money in Europe.
Hayman has come out of retirement to play for Pau at the Brisbane Tens this weekend and is one of seven former All Blacks in the French club's team for the two-day event.
A number of current and former All Blacks have already announced they are leaving for Europe at the end of the Super Rugby season including Lima Sopoaga, Liam Messam, Charlie Ngatai and Seta Tamanivalu.
All the players have cited money and life experience as reasons for leaving New Zealand, and those reasons are why Hayman thinks more players will move north in the coming years.
"What attracts players is money, lifestyle and you are at home every week so there are a lot of positives for players who are in their late twenty's and have a few years in their careers left to put a few a few bucks in the bank," Hayman told reporters.
"It's a tough one; it will always be a battle with the southern hemisphere rugby to hold onto their players.
"I think over the years we will see younger rugby players starting to go to Europe so it might be a bit of a concern for them here."
The 38-year-old Hayman played 45 Tests for the All Blacks between 2001-2007 before moving to Europe where he played for the Newcastle Falcons and Toulon.
Hayman is excited to dust off the old boots and represent Pau at the Brisbane Tens
"I've previously played in the Hong Kong Tens, so I know a bit about the game and the speed.
"I think it's an amazing concept because it's like fifteens rugby. You have everything like scrums to lineouts and real scrums where if you have a bad scrum it could lose you the game.
"It is everything in a fifteens game but faster."
Pau are grouped with the Highlanders, Chiefs and Waratahs for the Brisbane Tens which takes place at Suncorp Stadium on February 9-10.