American middleweights Kelvin Gastelum and Dustin Stoltzfus are set to face each other at UFC Fight Night 259, which will take place on September 14 in San Antonio, Texas, US, according to Ruby Sports Entertainment.
Gastelum last fought Joe Pyfer in June at UFC 316, losing by unanimous decision. His record is 19 wins, 10 losses and one no contest.
Stoltzfus most recently fought Nursulton Ruziboev in May at UFC Fight Night 256, a bout that also ended in a unanimous decision loss. He has 16 wins and seven losses.
