Last week, reports surfaced that the UFC’s July 28 trip to Calgary, Alberta, Canada could be topped by a women’s flyweight title fight between champion Nicco Montano, and fearsome number-one-contender Valentina Shevchenko. Apparently, however, negotiations for this fight are slowly curdling, and the UFC is losing patience with its long-absent flyweight queen.

This news comes from Ariel Helwani on Twitter.

UFC is losing patience with Nicco Montaño. As I reported last week, the plan was for her to defend the 125 title against Valentina Shevchenko in Calgary but they are having a hard time getting a commitment from her. While it’s not scrapped, they are now looking at other options.

— Ariel Helwani (@arielhelwani) May 1, 2018

“UFC is losing patience with Nicco Montaño,” Helwani said in a Tuesday morning Tweet. “As I reported last week, the plan was for her to defend the 125 title against Valentina Shevchenko in Calgary but they are having a hard time getting a commitment from her. While it’s not scrapped, they are now looking at other options.”

This is in keeping with a recent report from ESPN’s Brett Okamoto, who suggested that the UFC is now eyeing a lightweight rematch between top contenders Dustin Poirier and Eddie Alvarez for the Calgary card’s main event.

Not official, but I'm hearing UFC is interested in doing the Alvarez/Poirier rematch in Calgary on July 28. That's a heck of a main event if it comes together.

— Brett Okamoto (@bokamotoESPN) May 1, 2018

“Not official, but I’m hearing UFC is interested in doing the Alvarez/Poirier rematch in Calgary on July 28,” Okamoto said in a Monday night Tweet. “That’s a heck of a main event if it comes together.”