Eddie Howe quit unexpectedly Newcastle United after a 4-1 loss to Bristol City, Sky Sports News said.
Sky aired his last interview publicly.
He directly talked about the Bruno Guimaraes signing before walking out right after.
Former player Jay Bothroyd warned vocally the club could face threat of relegation without Howe.
Sky Sports will nationwide broadcast the top‑flight Scottish Premiership opener on Saturday.
Dundee United face Rangers at Tannadice.
Manager Jim Goodwin confidently said he wants to plant a flag there.
Dundee United coach Derek McInnes announced two United players are missing and several are uncertain.
Rangers anticipate Thelo Aasgaard and Cammy Devlin to be available for the match.