It was expected for a while but Conor McGregor has finally been sued by Michael Chiesa for his actions leading up to UFC 223 in April.

McGregor appeared at the Barclays Center in Brooklyn during media day and was looking to confront now-UFC 229 opponent Khabib Nurmagomedov, who had seemingly threatened the Irishman's friend and teammate Artem Lobov a day before.

He would go on to throw a dolly at a bus with Nurmagomedov inside, injuring the likes of Chiesa and Ray Borg in the process, both of whom were to fight on the card.

The former lightweight champion then turned himself in to police and was given multiple charges, before agreeing a plea deal in July, allowing him to resume his mixed martial arts career.

However, there is still a price to pay for McGregor. Chiesa suffered multiple cuts to his face and body, and could no longer face Anthony Pettis at the event. He claimed he even missed out on fighting for the lightweight title as Nurmagomedov was later without an opponent.

According to TMZ, Chiesa filed the lawsuit in state court in New York and is suing McGregor for "assault, battery and intentional infliction of emotional distress." The amount is not known at this point.

"Maverick" is also suing the Barclays Center for negligence and failing "to engage in proper security measures to protect the plaintiff and other patrons."

Chiesa would ultimately fight Pettis at UFC 226 in July but missed weight for the first time in his career, later stating he would never fight in the lightweight division again, before losing in the first round.

Borg, meanwhile, suffered an eye issue as his fight with Brandon Moreno was called off while women's strawweight champion Rose Namajunas, also on the bus, was scarred by what happened and "doesn't leave her house," according to her coach.

McGregor will return to the octagon for the first time in nearly two years when he takes on Nurmagomedov for the lightweight title at UFC 229 on Oct. 6 in Las Vegas.

Conor McGregor Conor McGregor caused shockwaves after his bus attack in the build-up to UFC 223. In this picture, McGregor (L) and co-defendant Cian Cowley (C rear) prepare to plead guilty to disorderly conduct during a hearing at New York State Supreme Court in Brooklyn, July 26, 2018. Photo: CHARLES ECKERT/AFP/Getty Images