Terenigma
G.O.A.T.
More seriously:
R3: Leonardo Mayer (ARG) / Teymuraz Gabashvili (RUS) (1 set all)
R4: Jack Sock (USA) / Steve Johnson (USA) / Dusan Lajovic (SRB) (1 set up) / Jurgen Zopp (EST) (1 set down)
Some quality tennis players, Nadal has such a difficult draw.