Following a record breaking UFC 300, the action inside the Octagon resumes with UFC Fight Night: Nicolau vs Perez aka UFC Vegas 91. The main event is a five-round flyweight bout between Matheus Nicolau of Brazil and Alex Perez of Hanford, California. The co-main event is a light heavyweight battle between Ryan Spann of Memphis, Tennessee and Bogdan Guskov of Uzbekistan.