Jesse Marsch is backing his development skills to get the best out of Raphinha and save Leeds from relegation.
The talented Brazilian has scored only once in 11 games coinciding with United's slide towards relegation trouble and the sacking of Marcelo Bielsa.
American Marsch needs a result against fellow strugglers Norwich on Sunday having lost his first two games in charge but has a track record of helping attacking players.
At New York Red Bulls he mentored Tyler Adams who is now a Bundesliga star at Leipzig and at RB Salzburg, Marsch managed Patson Daka, Enock Mwepu and Hwang Hee-Chan - all of whom subsequently moved to the Premier League.