Tell Messi to win a world cup. Ronaldo too. Neither of them are the GOAT. This is honesty the weakest era of defenders in Football history. Realistically, Ramos is the only central defender from this era going down in history as an all time great defender. Why? he's clutch, a known hot head, 4 time CL winner, 3 CLs in a row, Scoring the goal that took 2014 CL final to extra time to win, won everything internationally and has been the best central defender in the world since 2014. I don't consider, Thiago Silva, Dante, Pique, bonucci etc as defensive legends.
As for full backs, those are Dani Alves, Marcelo and lahm.
The previous era we had legends like Nesta, Cannavaro, Costacurta ,Maldini, Cafu, Ashley Cole, Stam, Puyol,Zanetti, Samuel, Zambrotta, Grosso, davids, roberto carlos etc. I could go on and on. What defender today is even half as good as the these? Messi and Ronaldo would not be styling on these motherfukkers. Defenders today are dog shyt.