Leicester City, Everton and West Ham checked on Brazilian winger Jonathan Cafu in midweek.
The Premier League trio sent scouts to watch 25-year-old Cafu play for Ludogorets in their Europa League defeat to FC Copenhagen.
The Brazilian was given a lone striker role against the Danes but was unable to prevent his side going down 2-1.
Ludogorets signed Cafu from Sao Paulo for £1.