At the UFC 301 official weigh-ins, all 28 fighters on Saturday’s fight card will step on the scale early Friday morning in Rio de Janeiro. Watch highlights of the official weigh-ins above.

In the main event, UFC flyweight champion Alexandre Pantoja and puts his belt on the line against Steve Erceg. Both fighters will have to hit 125 pounds for their title showdown.

In the co-main event, legendary former UFC featherweight champion Jose Aldo and Jonathan Martinez have to step on the scale at 136 pounds or lower for their non-title bantamweight showdown.

The UFC 301 official weigh-ins will start at 8 a.m. ET. Watch a live stream of the official weigh-ins below.

The UFC 301 ceremonial weigh-ins will be at 5 p.m. ET above.

Check out UFC 301 weigh-in results below.

Main Card (ESPN+ PPV at 10 p.m. ET)

Alexandre Pantoja (125) vs. Steve Erceg (125)

Jonathan Martinez (136) vs. Jose Aldo (136)

Anthony Smith (205.5) vs. Vitor Petrino (206)

Michel Pereira (186) vs. Ihor Potieria (185)

Paul Craig (185) vs. Caio Borralho (186)

Preliminary Card (ESPN2/ESPN+ at 8 p.m. ET)

Jack Shore (145.5) vs. Joanderson Brito (146)

Karolina Kowalkiewicz (116) vs. Iasmin Lucindo (116)

Elves Brener (156) vs. Myktybek Orolbai (155.5)

Jean Silva (146) vs. William Gomis (143) — cancelled

Early Preliminary Card (ESPN2/ESPN+ at 6 p.m. ET)

Joaquim Silva (155.5) vs. Drakkar Klose (156)

Mauricio Ruffy (156) vs. Jamie Mullarkey (155)

Dione Barbosa (126) vs. Ernesta Kareckaite (125.5)

Ismael Bonfim (156) vs. Vinc Pichel (156)

Alessandro Costa (125) vs. Kevin Borjas (125.5)