Harry Redknapp says Arsenal will never sack Arsene Wenger and has backed the Frenchman to drag Tottenham's north London rivals back in to the title race this season.
Wenger has endured a testing summer, leading some to question whether it is time for a new man at the helm, but Redknapp thinks the criticism aimed at his Gunners counterpart is unfair and expects his opposite number in Sunday's north London derby to remain in his post for some time.
"I don't ever see it happening. I don't see him going. It's not a possibility," Redknapp said. "He is a top manager. Look at his record. It's fantastic.
"To go through a season unbeaten - what an achievement.
"Lots of managers have bad times. They come in and then they never have good times. He is having a bit of a dip, but he will come out of that.
"The season has only just started. It certainly wouldn't help Arsenal [if he was sacked]. I don't think it's ever an issue that they would sack him but he is a top manager and they know they are well off."
Redknapp stated he is sure the Gunners will be challenging for at least a top-four position by the end of the season, and thinks they may be aided by the fallout over Carlos Tevez's feud with Manchester City manager Roberto Mancini.
"Arsenal will be up there at the end of the season, for sure," Redknapp continued.
"I think when everybody is fit they are a good side. They play fantastic football but have had a bit of a blip but it's nothing.
"When you have problems it can destabilise you a little bit and it maybe a difficult little spell for [City]."
Redknapp goes in to Sunday's clash full of confidence having strung together three successive league wins thanks partly to a shrinking injury list and the positive impact of new signings Scott Parker and Emmanuel Adebayor.
The Tottenham boss has lost just one north London derby in the league since he took over and last season led the club to their first win at Arsenal in 17 years.
"They'll be difficult to beat but we are a very good team as well so I fancy our chances against anybody," the 64-year-old said.
"I am confident in my own team. I just feel we have good players here. Scott Parker and Adebayor coming in have made a massive difference to us. Sandro coming back from his long-term injury gives us strength. He's a fantastic player so we look strong."