Manchester United are monitoring Gremio’s creative midfielder Arthur Melo.
The 21-year-old has already been linked with Chelsea, Atletico Madrid and Barcelona in recent weeks following his performances which have helped Gremio reach the Copa Libertadores final.
They earned Arthur a call-up to Brazil’s national squad for last month's World Cup qualifiers.
Arthur made his senior bow for Gremio back in January 2015 under former Chelsea boss Luiz Felipe Scolari.
But after playing just 45 minutes he did not feature in the first-team again until the following season.