The Manchester City head coach has commended The Special One's work in north London, with Spurs presently in the runner up.
trusts Tottenham is a competitor to conquer the Premier League title this season because of the "really good" performance of Jose Mourinho.
Runner-up Tottenham is unbeaten in seven league games since their opening game thrashing by Everton - their longest record in thePremier League
- and are a point behind the leading Leicester City.
Tottenham will face City in their home on Saturday and is looking for a fourth consecutive league victory for the first time since February 2019 when Mauricio Pochettino was in control.
Friday checks precisely a year since Mourinho replaced Pochettino and Guardiola has been intrigued with his old opponent's performance in north London.
"He's done really good, as always in all the clubs [he's managed]," Guardiola said at Friday's pre-match news conference.
"The numbers speak for themselves. They dropped points against West Ham and Newcastle in the last minute - imagine the points if they hadn't.
"They are contenders. The quality they've got is always there. They qualified for the Champions League for four or five years and reached the final.
"They have been a good team since Pochettino took over. It is a fantastic squad."
Manchester City has lost to the Spurs in their last two visits toTottenham Hotspur
Their earning of 12 points from seven league fixtures this season is the least gathered by Pep's teams in his entire career as a coach yet the Catalan manager claims his squad is gaining acceptable development.
"We are getting better," he said when reflecting on the most recent meeting with Tottenham nine months ago.
"But I don't want to focus on Tottenham - they are not my concern. We have a lot of games coming up and it is important we look to get everyone back fit."
will miss this current end of the week's game, while
are still in the process of recovering from their injury.
"Except for Nathan and Ferna, the rest of the players have come back from international duty," Guardiola said.
"Fernandinho is not fit. He has gastroenteritis, something in his stomach. Sergio trained this week. Raheem trained for the first time today with the team, so we'll see."
Mourinho has lost 10 of his 24 encounters to Guardiola in all rivalries - more than he has endured against any other manager.
Guardiola, extended his contract with City for two more years on Thursday, has just beaten
(12) additional times in his vocation.