UFC 303 takes another major hit following Conor McGregor's withdrawal

UFC 303 has taken another major hit following Conor McGregor's withdrawal, according to a report.

McGregor was due to make his Octagon return at UFC 303 on June 29.

But his fight against Michael Chandler fell through following the Irish fighter's injury.

The 'Notorious' was forced to pull out of their welterweight showdown as a source close to the UFC star has dropped a huge update on a new date for his comeback.

Dana White swiftly matched UFC light-heavyweight champion Alex Pereira against Jiri Prochazka in what will be a rematch following their controversial first meeting at UFC 295 last November.

The UFC chief also added a big featherweight clash between Brian Ortega and Diego Lopes, which will serve as the co-main event.

And White drafted in Anthony Smith to replace Jamahal Hill against Carlos Ulberg.

However, according to Australian journalist Benny P, who was first to report on Khamzat Chimaev pulling out of UFC Saudi Arabia against Robert Whittaker, Ulberg is OUT of his fight against Smith.

Ulberg, who is on a six-fight winning streak, got on the UFC 303 card after he replaced Khalil Rountree Jr.

But he won't be able to compete this month as the UFC will look for a replacement fighter on very short notice.

Carlos Ulberg is reportedly out of his fight against Anthony Smith. Image: Getty

UFC 303 has been savaged, with the promotion losing their original main-event and co-main event.

The Las Vegas event, though, does boast the second meeting between Pereira and Prochazka as well as Ortega vs. Lopes.

Not to mention a huge welterweight tilt between Michael 'Venom' Page and Ian Garry.

Joe Pyfer, Cub Swanson, Michelle Waterson-Gomez and Andrei Arlovski also feature on UFC 303.