For Spurs, who are playing at Wembley while White Hart Lane is rebuilt, it was a first home defeat in the league since a 2-1 loss to Southampton in May 2016.
The formation Conte has opted for has left many in a state of confusion... The wing-back stormed into the Spurs box to catch out Hugo Lloris at the near post two minutes from time, leaving Conte to unfurl trademark touchline delirium.
The Brazilian was pushed forward into midfield and had a hand in both goals.
Marcos Alonso scored a late victor for the Blues as Spurs started life at their temporary home with a disappointing defeat.
There were no changes at half-time, but Spurs had two excellent chances to equalise within the first 50 seconds of the restart.
Kane went close to an equaliser, but Courtois was up for the challenge.
Just before the half, Ben Davies found himself in space 20 yards out and unleashed a swerving effort that Courtois had to push around the post at full stretch.
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"Because, if not, we prepare the team to win the FA Cup or League Cup and you are in the middle of the table, or sixth, or seventh".
"At the end of the day you need to have good players".
Alvaro Morata almost gave his team the lead after just five minutes but somehow missed the target from just a few yards out, prompting immediate hilarity on social media.
Spurs went unbeaten throughout their final league campaign at White Hart Lane, but struggled at Wembley in the Champions League and have now lost eight of the last 10 matches they have played there.
Safety measures for the Chelsea game mean Tottenham will not be able to fill all of Wembley's 90,000 seats, so they may have to wait to set a new record for a Premier League attendance.
- Tottenham have lost seven of their last nine matches at Wembley (W1 D1) and lost each of their last four games against Chelsea there. Bakayoko's impressive physical presence that we witnessed throughout today's clash went a step too far as the Frenchman needlessly fouled in a unsafe area, and Christian Eriksen again delivered a quality set-piece.
Pochettino's men began to settle a bit more with quarter of an hour played and a nice passage of play soon occurred, but ended with Dembele testing Courtois from range. The only goalTottenham managed was an own goal by Michy Batshuayi - 3 minutes after coming on late in the 2nd half.
Tottenham Hotspur's Dele Alli battles for the ball with Chelsea's Marcos Alonso (left) and Andreas Christensen (right) during the Premier League match at Wembley Stadium (pic: Steven Paston/PA Images).