Preston North End currently sit in 18th place – nine points above Peterborough – and had recently been struggling with poor form.
The Lilywhites have now sacked Frankie McAvoy and are looking to bring in a new man to lead them to safety, with Plymouth Argyle boss Ryan Lowe a name that has been heavily linked.
Posh remain in the bottom three and are without a win in their previous seven fixtures.
Three points against Millwall at the weekend would take them within touching distance of Cardiff City, who sit just outside of the relegation zone.
Here are the best of today’s Championship rumours...
. LEEDS, ENGLAND - NOVEMBER 07: A detailed view of the Nike Flight Hi Vis winter ball match ball during the Premier League match between Leeds United and Leicester City at Elland Road on November 07, 2021 in Leeds, England. (Photo by Naomi Baker/Getty Images)
7th December 2021 - Championship rumours Photo: Naomi Baker
1. Canaries target Quintilla loan deal
Norwich City are reportedly homing in on Villareal left-back Xavi Quintilla, with a loan deal with an option-to-buy on the cards. He began his career in the Barcelona youth academy, and joined his current club in 2017. (Marca) Photo: GABRIEL BOUYS
2. Owls' Simmonds interest stalls
Sheffield Wednesday are said to have taken a step back in their approach for Manchester City forward Keke Simmonds, with the player's wage demands said to have stalled progress on a potential deal. (Football League World) Photo: Charlotte Tattersall
3. Hatters to battle Black Cats for ex-Man Utd youngster
Luton Town look set to rival Sunderland for ex-Manchester United youngster Demetri Mitchell. The versatile left-back was released by the Red Devils at the end of last season. (Sunderland Echo) Photo: Alex Morton
4. Villa could hijack Blades deal
Aston Villa are said to be ready to launch a bid to sign Bournemouth 'keeper Aaron Ramsdale, and hijack Sheffield United's attempts to bring their former stopper back to Bramall Lane. (Daily Mail) Photo: Jan Kruger