Sakai, 29, has worked his way to a No. 9 ranking since coming from the Dana White Contender Series. He has four consecutive wins in the octagon, including a split-decision over Blagoy Ivanov at UFC on ESPN 9 in May. Overeem will be the biggest opponent he’s faced yet.
Meanwhile, Overeem, 40, is trying to work his way towards one more run at a title shot. He stopped Walt Harris at UFC on ESPN 8 in May. The former Strikeforce and K-1 heavyweight champion has won three of his last four fights.
UFC on ESPN+ 34 is scheduled for Sept. 5 at the UFC Apex in Las Vegas. Current bouts include:
ALISTAIR OVEREEM (46-18-0, 1NC) VS. AUGUSTO SAKAI (15-1-1)
NICCO MONTANO (4-3-0) VS. JULIA AVILA (8-1-0)
MONTANA DE LA ROSA (11-5-0) VS. VIVIANE ARAUJO (8-2-0)
MICHEL PEREIRA (23-11-0, 2NC) VS. ZELIM IMADAEV (8-2-0)
SIJARA EUBANKS (5-4-0) VS. MACY CHIASSON (6-1-0)
BARTOSZ FABINSKI (15-3-0) VS. ANDRE MUNIZ (19-4-0)
BRIAN KELLEHER (21-11-0) VS. RICKY SIMON (16-3-0)
JALIN TURNER (9-5-0) VS. THIAGO MOISES (13-4-0)
COLE SMITH (7-1-0) VS. HUNTER AZURE (8-1-0)
KHAMA WORTHY(16-6-0) VS. OTTMAN AZALTAR (12-0-0)
ALEXANDER ROMANOV VS. MARCOS ROGERIO DE LIMA (17-6-1)
OVINCE ST. PREUX (24-14-0) VS. ALONZO MENIFIELD (9-1-0)