A-League champions Brisbane Roar have significantly bolstered their future by re-signing six first team players including star import Thomas Broich.

The club, searching for a third straight title in the approaching season, announced today they had also signed captain Matt Smith, vice-captain Shane Stefanutto, goalkeeper Michael Theo, Brazilian import Henrique and defender Ivan Franjic to new deals.

All six players featured in the Roar's back-to-back grand final wins and the mass re-signings represent a strong show of confidence in new coach Rado Vidosic.

German midfielder Broich, 31, signed a four-year contract extension, as did reigning A-League goalkeeper of the year Theo.

Smith, Franjic and Henrique signed new three-year deals, while Stefanutto secured a one-year extension taking him to the end of the 2013/14 season.