Currently, though, Bayern's search for a new left winger is a top priority. It is proving difficult, however, with top target Athletic Club's Nico Williams appearing set to join Barcelona and Bradley Barcola unlikely to leave Paris Saint-Germain. Other targets such as Rafael Leao of AC Milan, Jamie Gittens of Borussia Dortmund, Arsenal's Gabriel Martinelli and Gusto's Chelsea team-mate Christopher Nkunku are also being discussed.