Pochettino says Chelsea in 'most challenging period'
Mauricio Pochettino says facing his former club Tottenham will always be "emotional", but his full focus is on guiding Chelsea through a testing period ahead of the London derby at Stamford Bridge.
Pochettino enjoyed a successful five-year stint with Spurs between 2014 and 2019, leading them to a Champions League final and to three straight top-three Premier League finishes.
He has found the going more difficult since taking over a Chelsea side still going through a transitional period under the Todd Boehly regime, with the big-spending Blues sitting ninth in the Premier League table.
Chelsea did beat Tottenham 4-1 in a memorable return fixture in November, meaning Pochettino could become the first coach to complete a Premier League double over Spurs having previously managed them in the competition.
"It will be emotional coming up against people who I worked with for a long period. I can't hide my emotion for the club," Pochettino told reporters on Wednesday.
"But across 90 minutes we want to win and Tottenham are going to come here to try and win."
Chelsea is five points adrift of the top seven with a game in hand, and Pochettino believes the club is taking the first steps on a path similar to that followed by his Spurs team.
"Tottenham was amazing because the challenge was to create a team that could compete with top sides," he said.
"Now at Chelsea, we are in the process of building an exciting project that needs time and this is maybe the most challenging period."
Tottenham is in desperate need of points if it is to reel in Aston Villa and secure a top-four finish, having suffered back-to-back defeats against Newcastle United (0-4) and Arsenal (2-3).
Despite Spurs' recent slide, Ange Postecoglou is in no doubt that his team has made big strides this season, saying: "What I see is us playing football, measuring ourselves against the best.
"My players have got real belief in what we are doing. That's all I need to see."