Chelsea boss Jose Mourinho sees similarities between themselves and Champions League opponents PSG.
Mourinho's first European match as Chelsea boss in his first spell was a 3-0 win at PSG in September 2004.
However, the mega-rich Parisiens are a different proposition now.
PSG are unbeaten in 28 European home games, since Hapoel Tel-Aviv won 4-2 in the UEFA Cup group stage in November 2006.
Mourinho led Chelsea through the early years of owner Roman Abramovich's revolution and was asked to compare then with PSG.
"You can find similarities," Mourinho said.
"When Mr Abramovich bought the club he was ready and keen and the football rules were open to that, so the investment was important, was probably the most important investment in that period.
"As a consequence of that, Chelsea build year after year some of the best teams in European football.
"Paris is doing the same. Some people don't understand very well how because it looks like the Financial Fair Play is going to be in practice, but the reality is that in the last two years the investment was massive.
"The choice of the players was fantastic. In this moment the team is very complete and is full of very good players."
