Mourinho who was celebrating his 1,000th game as a manager was highly elated after Stephan El Shaarawy scored a dramatic stoppage-time winner in the 92nd minute at Stadio Olimpico.
"During the week I was a liar, saying it wasn't a special match. But it was a special match,' Mourinho told DAZN.
"It was a match with a special number for me and I always wanted to remember a match like this for my 1,000th game. I lied to everyone!
'It could have ended 6 to 6, 7 to 7, (Roma goalkeeper) Rui Patricio came up with two miracles, we missed a few goals. Extraordinary game, a tremendous emotion.
"Today I am not 58, but 14, when you start dreaming of a career in football. It was a child's race, I apologised to [Sassuolo head coach Alessio] Dionisi, they played a fantastic game"
Mourinho after winning the game against Sassuolo took his tally to 638 career victories, with 205 draws and has lost 157 of his other games.
With 33 trophies won in his managerial career during his time with Porto, Chelsea, Manchester United, Inter Milan and Real Madrid Mourinho is regarded as one of the greatest coaches in football.
After a perfect start to the season, Roma will be looking to extend their winning streak when they face CSKA Sofia in the UEFA Europa Conference League on Thursday.
