UFC Noche: Conor McGregor's heir and a historic women's trilogy - Inside $20m Sphere event

Sean O'Malley and Alexa Grasso defend their titles at UFC Noche on Saturday - the first sporting event to take place at Las Vegas' glamourous Sphere.

UFC Noche: Conor McGregor's heir and a historic women's trilogy - Inside $20m Sphere event

UFC Noche: Conor McGregor's heir and a historic women's trilogy - Inside $20m Sphere event

UFC Noche: Conor McGregor's heir and a historic women's trilogy - Inside $20m Sphere event

UFC Noche: Conor McGregor's heir and a historic women's trilogy - Inside $20m Sphere event

UFC Noche: Conor McGregor's heir and a historic women's trilogy - Inside $20m Sphere event