Canada's Denis Shapovalov and Vasek Pospisil celebrate after winning their doubles match agianst Australia's John Peers and Jordan Thompson. Photograph:( Reuters )
Hewitt has been a vocal critic of the revamp of the 119-year-old tournament that originally had home and away ties played throughout the year
Canada booked their place in the Davis Cup semi-finals as Vasek Pospisil and Denis Shapovalov won the deciding rubber against Australia on Thursday.
The 150th-ranked Pospisil, who has had an inspired week in Madrid, gave Canada the lead by beating John Millman 7-6(7) 6-4 in the opening singles at La Caja Magica.
Shapovalov came close to clinching the deal against Alex De Minaur, only to lose 3-6 6-3 7-5, but he recovered to join Pospisil and defeat Jordan Thompson and John Peers 6-4 6-4.
Canada will face either Serbia or Russia in the semi-finals on Saturday.