The IBF middleweight world title — vacated by Canelo Alvarez’s weight-class change — will be on the line in Golovkin’s second bout since losing to Alvarez last September.

With Alvarez planning to box as a light heavyweight in November and having shown little interest in taking on Golovkin this fall, it’s unclear whether a third bout between the two will ever materialize. If Golovkin is upset by Derevyanchenko, it would become even less likely.

GGG and Derevyanchenko, along with the rest of the undercard for the Oct. 5 fight, will weigh-in beginning Friday at 3 p.m. ET. You can watch a live stream of the weigh-ins from New York below, where you’ll also find updated results as fighters up and down the card hop on the scale.

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Watch the GGG vs. Derevyanchenko weigh-in live stream

You can re-watch the weigh-ins for Golovkin, Derevyanchenko and the full undercard below.

GGG vs. Derevyanchenko weigh-in results for full card

What time is the GGG vs. Derevyanchenko fight?

7:30 p. m. ET (prelim) | 9 p. m. (main card)

The main card on Oct. 5 kicks off at 9 p.m. ET, meaning Golovkin vs. Derevyanchenko should face off around midnight.

GGG vs. Derevyanchenko fight card