Stephen Curry is a centerback.
All defenders are soccer players. No soccer players are professional basketball players. All centerbacks are defenders. All NBA players are professional basketball players. If Stephen Curry is not an NBA player, then Stephen Curry is not an NBA player or a soccer player.
∀x (Defender(x) → SoccerPlayer(x)) ∀x (SoccerPlayer(x) → ¬ProfessionalBasketballPlayer(x)) ∀x (CenterBack(x) → Defender(x)) ∀x (NBAPlayer(x) → ProfessionalBasketballPlayer(x)) ¬NBAPlayer(stephencurry) → ¬(NBAPlayer(stephencurry) ⊕ SoccerPlayer(stephencurry))