What happened: Williams said he did not follow fighters overseas and expects the unfamiliarity runs both ways. The pairing marks Roberto Soldić's UFC debut in the welterweight division.

Why it matters: Blind bookings shift preparation to general traits over specific tape. A debut win would plant Soldić in the division, while a Williams win defends his place against a new arrival.

What to watch: Watch weigh-ins Friday, then opening exchanges Saturday for how each handles an unseen opponent.