Gareth Thomas claims to have been targeted for his sexuality in an attack in Cardiff.
Tonga showed some fight but Wales ultimately stormed to a 74-24 victory at the Principality Stadium.
Wales coach Warren Gatland has made 14 changes for Saturday's international against Tonga, with Liam Williams selected for his 50th cap.
Wales hope to have Tomas Francis and George North fit to face Tonga, but Samson Lee has left the camp with a hamstring injury.
Having played the last time Wales beat Australia 10 years ago, Alun Wyn Jones was left feeling old after Saturday's win over the Wallabies.
For the first time since November 2008, Wales were able to celebrate victory over Australia after a tense affair in Cardiff.
Hooker Tolu Latu's indiscipline in his last two Tests has not deterred Michael Cheika from starting the hooker against Wales.
Warren Gatland brought Tomas Francis, Adam Beard and Josh Adams into his side to face Australia, with Dan Biggar and Liam Williams benched.
Wales take on Australia on Saturday but Jamie Roberts says the match will not be an indication of how the teams perform at the World Cup.
Warren Gatland saw room for improvement but was encouraged by the way Wales saw off Scotland to win the Doddie Weir Cup.
Wales started their November internationals with victory over Scotland, Jonathan Davies scoring on his return from a long injury lay-off.
Wales have named the team that will take on Scotland in their opening November international, with Jonathan Davies back in the fold.
Stuart McInally captains Scotland again against Wales, but there are numerous changes to the side that beat Argentina.
Gethin Jenkins, Wales' most capped player, will retire from rugby this weekend.
Warren Gatland is in New Zealand following the death of his father, but may be back for Wales' match against Scotland in Cardiff.
The Welsh Rugby Union offered its condolences to Warren Gatland, who has flown back to New Zealand after his father's death.