From the link I posted, this doesn't appear to be a "typical" Rock role:
This version shifts decades earlier (and farther south) and, in a "true" (or at least truish) story, charts the intersection of two crime syndicates, one African-American and the other Italian-American, who strike an "uneasy peace," FX says. To cement it, the heads of both families trade their eldest sons.
Rock plays the head of the African-American crime family, "a man who — in order to prosper — has surrendered his oldest boy to his enemy, and who must in turn raise his son’s enemy as his own," FX says in a statement describing the season. "And then the head of the Kansas City mafia goes into the hospital for routine surgery and dies. And everything changes. It’s a story of immigration and assimilation, and the things we do for money. And as always, a story of basically decent people who are probably in over their heads."