Brumbies great Ben Alexander has announced his retirement from rugby union, prompting tributes from chief executive Michael Thomson and head coach Dan McKellar.

The 33-year-old prop called time on a record-breaking career on Monday after making 154 Super Rugby appearances for the Brumbies - more than any other player - and collecting 72 Test caps for Australia.

Alexander's final appearance for the Australian Conference franchise came in a 40-31 defeat of the Waratahs in July, described by the Brumbies as "a fitting end to a glorious career".

Thomson added: "Ben has been a loyal club man and incredible talent. Not only is he a tremendous rugby player, Ben is also a wonderful man and is a very popular person amongst the players, staff and supporters.

"His commitment to the club is second-to-none and is exemplified by his retirement as our record cap holder."

McKellar said: "Ben has been at the club for a long period of time and is a guy who is very popular amongst the playing group, is highly respected and has had a tremendous career having made a significant contribution to the Brumbies."