Following the weigh-in, Wilder and Fury clashed outside, with the two fighters separated by security.
Wilder will be ringside for Saturday's fight, according to ESPN, and a future showdown between him and Fury could be announced immediately afterward, assuming Fury defeats Pianeta.
So, it could be real or could not be. but one thing's for sure, it's a hell of a lot of fun. Joshua will fight Alexander Povetkin on September 22 at Wembley Stadium, and Wilder could be destined for a fight with Fury later this year.
Imran asked sons not to come to oath-taking ceremony: Jemima
In the July 25 elections, Imran Khan's PTI won 116 of the directly contested 272 seats, just 21 short of the halfway mark. Khan and the PTI campaigned on promises to end widespread graft while building an "Islamic welfare state".
Deontay Wilder was in attendance after crashing the weigh-in, shouting his trademark "BOMBZQUAD" phrase while clashing with Tyson's father, John.
A date of 17 November in Las Vegas has been prepared for their anticipated fight and Fury demonstrated further signs of progress by weighing in at 18st 6lbs - significantly lighter than the 19st 10lbs he was for his comeback fight against Sefer Seferi in June.
Wilder and Tyson Fury then came face-to-face in the lobby of the Europa Hotel, with dozens of fans holding them apart.
Pianeta weighed in at 18st 2lbs ahead of the fight, which is on the same bill as Carl Frampton's bout with Australia's Luke Jackson, who fight for the former's interim WBO featherweight title.