Eric Dyer became the first Spurs player to discover Jose Mourinho's sharp interventions when the Portuguese replaced the defensive midfielder half an hour later in a decision that proved to be a milestone on Tuesday.

Mourinho's debut at home after being replaced by Mauricio Pochettino came off to a bad start with Olympiakos' 2-0 lead after 20 minutes of Group B clash in the Champions League.

But Mourinho, twice the Champions League winner, acted decisively, sacrificing midfielder Dyer and involving Danish playmaker Christian Eriksen, who sat on the bench in his first match when he beat West Ham in the league on Saturday.

It took time for the change to take place before Dale Alley realized the goal to reduce the gap by the end of the first half.

Tottenham, who lost last season's Champions League final with Pochettino, qualified for the final, scoring seven goals in Mourinho's first two games in return for four goals in a quick response to those who thought the club would be boring after the Portuguese coach was appointed.

While Dyer and Eriksen succeeded, Mourinho said it was the most difficult decision that night.

"The hardest moment for me is not the goals, but the change I did," said the 56-year-old, who thanks to his tactical tactics has won titles with all the clubs he has coached. ".

"But it is important that the player understands it, and I was lucky that he was very smart to understand that it was about the team and not his level. I apologized to Eric, and I made it clear that I didn't do it until it hurts."

"Christian gave us what we wanted during this time."

Mourinho, who was sacked from Manchester United last season after worsening results and strained his relationship with many, has become a friendly person since his appointment as Tottenham manager.

Tottenham's performance was a summation of his season. He stumbled before he took advantage of a defensive mistake to equalize before the break.

In the second half, Eriksen created plenty of chances for his teammates Keane, Sun Hyung-Min and Lucas Mora.

With Tottenham at home to Bournemouth in the next round of the Premier League, Mourinho has a big chance of winning his third consecutive win.

"The next game is at home and I expect players to start without fear and play with confidence," Mourinho said.