Paris Saint-Germain head coach Mauricio Pochettino has "no doubt" Lionel Messi will continue to perform at the highest level when playing for the Ligue 1 giants.
Messi and PSG will host Group A rivals RB Leipzig on matchday three of the Champions League on Tuesday.
After netting in PSG's win against Manchester City three weeks ago, Messi is looking to join team-mate Neymar (2017), Alex (2012) and George Weah (1994) in scoring in his first two home games for the club in the competition.
As Messi continues to find his feet in the French capital following his blockbuster switch from Barcelona, Pochettino praised the six-time Ballon d'Or winner.
"Leo [Messi] shines by himself. He shone in Barcelona, [he] shines with Argentina and shines at PSG," Pochettino told reporters, with PSG level on four points with Club Brugge – a point above City and four clear of winless Leipzig.
"He is absolutely adapted, he has the intelligence and the adaptation ability at the highest level. He is now more relaxed and with the experience of being at the club and in the city a few months he is very happy here.
"We are very happy and we expect that everything goes naturally and him to perform the way he expects and everyone expects. I have no doubt about that."
PSG have a great record against German opponents, having won seven of their eight meetings with Bundesliga clubs on home soil, though the exception in that run was in April this year when Bayern Munich won 1-0 at the Parc des Princes.
Champions League runners-up in 2019-20, PSG do not tend to slip up at home in the group stage, losing just one of their past 28 such games – against Manchester United in October 2020 – and netting 2.7 goals per game on average.