It appears a highly anticipated UFC lightweight fight set for next month is on hold.

Beneil Dariush (19-4-1 MMA, 13-4-1 UFC), one of the hottest fighters in the division, on Monday posted on Instagram that Charles Oliveira (29-8 MMA, 17-8 UFC) is out of their Oct. 3 fight. UFC officials have not made a formal announcement of the change.

“After my fight with Scott Holtzman, the UFC offered me a fight with Charles Oliveira on Oct 3rd,” Dariush posted. “I accepted and so did Charles. I did not announce it because I was waiting on the UFC to announce it and I would follow. I been informed Charles is out of the fight. I am not sure on the details but I hope all is well with Charles. I am currently working with the UFC to figure out our next step. I will keep you all posted on the details. Finally, even though the fight did not come to fruition I want to thank the UFC, Sean Shelby, and my brother Ali Abdelaziz for setting this up.”

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A post shared by Beneil Dariush (@beneildariush) on Sep 7, 2020 at 1:56pm PDT

Dariush has won five straight and has finishes in his past four. He’s coming off a highlight-reel spinning backfist knockout of Scott Holtzman at UFC on ESPN+ 32 that earned him MMA Junkie’s “Knockout of the Month” for August, but couldn’t take home his fourths traight performance bonus because he missed weight.

Oliveira owns a seven-fight winning streak, all of which have been by stoppage. The Brazilian most recently locked up a submission win over Kevin Lee in March.

The latest lineup for the UFC’s Oct. 3 event includes:

• Holly Holm vs. Irene Aldana
• Germaine de Randamie vs. Julianna Pena
• Andrei Arlovski vs. Tanner Boser
• Jinh Yu Frey vs. Loma Lookboonmee
• Yorgan De Castro vs. Carlos Felipe
• Beneil Dariush vs. opponent TBA
• Carlos Condit vs. Court McGee
• Heili Alateng vs. Casey Kenney
• Julia Avila vs. Nicco Montano
• Tom Breese vs. Roman Kopylov
• Josh Culibao vs. Charles Jourdain