It will be Steve and Mark's 100th Test together making them the first set of brothers to achieve such a feat.

Typically neither was aware of the milestone until being informed by journalists this week.

"It's very surprising. I would have thought we'd only have played about 60 or 70 but time does fly," said Steve, the older of the two by three minutes.

"But we don't want to get too carried away about it at the moment but later on when we retire and look back on it, it will be significant.

"It's really just nice for the family, for mum and dad - all the sacrifices they made with us growing up."

Only 41 sets of brothers have played at least one Test match together and, of those, only the Waughs are twins.

Zimbabwean pair Andy and Grant Flower are second on the list on 54 Tests.

Steve, who will be playing his 143rd Test, made his debut six years before Mark, who is winning his 120th cap.

Ironically Mark came into the side against England at the Adelaide Oval in 1990-91, at the expense of his brother.