Neymar has been challenged to lead Paris Saint-Germain with his artistry this season by head coach Thomas Tuchel.

The Brazil superstar returned from a disappointing World Cup to make his first appearance for PSG since February as a substitute in last weekend's 4-0 Trophee des Champions triumph against Monaco.

With the broken metatarsal that curtailed his debut season in the French capital behind him, Tuchel wants the world's most expensive player to shine as his team's focal point.

"It is clear that Neymar is my key player," the former Borussia Dortmund boss told a news conference ahead of PSG's top-flight opener against Caen on Sunday.

"He is one of the best players in the world but he is also an artist, a creative. For creative players it's sometimes easier not to put too much pressure on them. 

"There are many ways to be a leader and for Neymar, in my opinion, he is our leader when he is happy in terms of game content.

"He takes risks, creates more. There are players who are responsible for the defence too and for me it is not his role."

A couple of decisions that appear to have been taken out of Tuchel's hands are those regarding the selection of left-back Layvin Kurzawa (back) or midfielder Marco Verratti (adductor), both of whom missed training on Saturday.

"Marco had surgery at the end of last season and he is still suffering from this," he explained.

"He has highs and lows, he trained hard during the pre-season. Sometimes they are not even pains but sensations and we must be careful."

Tuchel added: "Regarding the players who arrived on Monday [following a post-World Cup break], we will decide today or after training tomorrow. I do not want to take any chances but you can imagine that they all want to play."