The third seeds were forced into a final-set tiebreak, where they saved a match point, before overcoming Muhammad and Townsend in a tremendous tussle 6-4, 3-6, 7-6 (9-7) and booked their ticket to the final.
The visitors pressed frenetically for a goal and were rewarded in the 23rd minute when Dodi Lukebakio nodded home a corner kick from close range to halve the deficit.
In contrast, Dele Ali disappointed for Tottenham and was replaced at the break and it is the first time Mourinho has been beaten in the first league game of the season in his entire career.
"I'm really proud and happy to become a Paris Saint-Germain player. They're one of the major clubs in Europe today, confirmed by their run to the Champions League final last month," said Florenzi to PSG's official website.
The announcement came a day after a 2-0 home loss to Palmeiras, a result that left Corinthians 13th in the 20-team standings with just two wins from eight matches.
"There wasn't a gap and if you use your elbows to open it up, I think it's completely against the rules," Van Aert said.
The OVEP toolkit is a free educational resource, created by the IOC, to share knowledge, promote Olympic values and facilitate the sustainable development of Olympic education. It provides students with various educational activities and teachers with teaching resources as well as practical training. Its Chinese version includes The Fundamentals Manual - a sport-based program; Delivery Playbook - a practical guide to Olympic Values Education; Activity Sheets - exercises to support Olympic Values Education; and Workshop Plan - a learning program through physical activity.
"We have extraordinary challenges ahead of us this season, and it will be a pleasure and an honour to face them alongside my new teammates, who are among the best players in the world," he added.
During his coaching career, he won seven national championships, five national cup championships and seven super cup championships. Enditem
Earlier in the day, Monaco beat Nantes 2-1 at home to move atop of the league standings on goal difference. Enditem
Italian full-back Alessandro Florenzi, who has just arrived in Paris on a one-year loan from Serie A side Roma, could also cap for Tuchel's side in Sunday's match,