I’m gonna reckon not a Big Four guy as the grand slam winning fixer. Overwhelmingly obvious choice is Marat Safin (yes solely because he is Russian). If it’s in the last 10 years we’re talking, only other options are really Juan Martin del Potro (could see it, especially post-career-falling-apart), Stan Wawrinka or…

Eh, to be fair, I’d say not really - Nolito’s a great story and playing genuinely very well but “supersub” is pretty much where he’d top out at any big club.