Consequently, the 2023 UEFA Champions League final originally to be played in Munich will be moved to 2025.
The 29-year-old De Bruyne sustained the injuries in a collision with Chelsea defender Antonio Rudiger while playing for Manchester City in the Champions League final on Saturday.
Tuchel also said that winning the Champions League is just a beginning for this young Chelsea squad and there are greater things in store.
French midfielder N'Golo Kante, who was voted the man of the match for his tireless performance for Chelsea, said he felt "joy and pride".
City have had to wait 13 years since being taken over by Abu Dhabi's Sheikh Mansour just to get to the Champions League final.
Chelsea is set to have goalkeeper Edouard Mendy and midfieder N'Golo Kante fit to start the Champions League final against Manchester City on Saturday.
Guardiola said at the start of the week he is still not sure of his team lineup for the final, but the selection debates are likely at left back and in defensive midfield.
Chelsea, though, have beaten City twice in the last six weeks, first in the FA Cup semi-final and then at the Etihad Stadium in the league.
The Dragao Stadium, in the Portuguese city of Porto, will host on May 29 the final of the Champions League.
Stadiums have been closed to spectators in Portugal but pandemic restrictions are being eased to allow them to be at 10% capacity for the final round of league games next Wednesday.
UEFA has given the British government until Tuesday to decide whether authorities can offer all of the travel waivers required.
The British government is advising supporters not to travel to Turkey because of the new restrictions.
It was the Paris-born winger who netted twice before PSG had Angel Di Maria sent off. City won 2-0 to eliminate last season’s finalists 4-1 on aggregate on Tuesday.
A statement released by the national team on Monday indicated the 26-year-old will remain with the squad.
The injury occurred when Salah got tangled up with Real Madrid defender Sergio Ramos in the 25th minute of the Champions League Final at NSC Olimpiyskiy Stadium in Kiev.