Billions of dollars have been spent. Some of the world's greatest players have come and gone. Yet the Champions League trophy has remained agonisingly out of reach for Paris Saint-Germain.

That could be about to change.

The Qatari-owned team are one game away from European club soccer's most prestigious prize, with Inter Milan standing in the way in Saturday's final in Munich.

"The motivation for me is to win the Champions League title for the first time for PSG," coach Luis Enrique, a winner with Barcelona in 2015 and who has won 12 major trophies in spells with the Catalan club and PSG, said on Friday.

"That is the gift I want to give the people, the club, the city."

PSG are the favourites, with a thrilling young team that has produced stunning performances to get past Manchester City, Liverpool and Arsenal.

But Inter are wily opponents that are in their second final in three seasons and cut down a rampant Barcelona in an epic semi-final — winning 7-6 on aggregate.

"Our opponent, we hold the utmost respect for," Inter captain Lautaro Martinez said.

"But with the weapons we've got, we want to hit them where it hurts."

Owned by Qatar Sports Investments since 2011, PSG signed some of the biggest names in soccer including Zlatan Ibrahimovic, Kylian Mbappe, Neymar and Lionel Messi without ever getting their hands on the trophy they crave most of all.

"It's about being a team, not a group of individuals," PSG captain Marquinhos said.

"I'm in love with this team. It's a delight to be part of the squad."

PSG's transformation has still come at some cost.

Players like Ousmane Dembele, Desire Doue and Khvicha Kvaratskhelia were signed for an estimated $US240 million ($A373 million) combined in a squad assembled at spectacular expense.

Meanwhile, Inter have been savvy in the market — signing older players and picking up free agents to put together a team that have reached two Champions League finals in three years — losing to Manchester City in 2023 — and won one Italian title in that time.

PSG's only previous final was in 2020, a 1-0 loss to Bayern Munich and Inter last won it in 2010 under Jose Mourinho.

Dembele has been one of the outstanding players in Europe this season with 30 goals in all competitions for PSG.

World Cup winner Lautaro Martinez is Inter's standout player and became the club's all-time leading scorer in the Champions League this season.

"I've won big trophies but I'm missing the Champions League," the Argentine said.

"I'm happy to be in another final. We want to have the perfect game and bring the trophy back to Milan."