Former Paris Saint-Germain favourite Nene believes Lucas Moura will prove he is a success in the colours of the Ligue 1 champions.
Lucas, 21, arrived in the French capital with a burgeoning reputation in January 2013 after completing a move from Sao Paulo.
He has largely failed to deliver on his potential, though four assists in his last three competitive outings, including the cross for Zlatan Ibrahimovic's last-minute winner in Tuesday's Coupe de la Ligue semifinal win over Nantes, has given PSG fans a glimpse of what the Brazil international can do.
Nene, 32, who spent two-and-a-half seasons at the Parc des Princes, told RMC he is convinced his compatriot will be a massive success in Europe.
"He has a lot of ability. It's not easy to arrive at a club like Paris," he explained. "The pressure is different. The style of play is also different. My advice is for him to stay as he is, and try to do his best when he's on the pitch.
"At a given time, he's going to show he has the huge qualities that can help Paris. For me, he's a 'crack'. What I have seen of him, notably with the national team -- and at one time he was first-choice with Brazil -- it's not everyone who can do that and it proves he has the quality."
After moving to PSG from Monaco in 2010, Nene was one of the players not culled following the takeover of the club by Qatar Sports Investments (QSI) the following year, and even finished joint-top scorer in the 2011-12 season along with Olivier Giroud as PSG finished as runners-up to Montpellier.
However, he fell out of favour with Carlo Ancelotti in the first half of the following campaign, playing only a bit-part role and notably losing his temper in public during a Champions League game against Porto when he felt he should have been brought off the substitutes' bench by the Italian.
With his prospects at PSG bleak, he joined Qatari club Al Gharafa a year ago, but acknowledged he perhaps should have ridden out the rough times.
"Sometimes I ask myself: 'If I had had just a little more patience...' That's the way it goes," he explained. I'm happy. My time has gone, even if a lot of people tell me I could go back. You never know. I continue to follow the team, the supporters and the players who are still there."