Welcome back to The Crossfire.
VanZant is looking to bounce back from a submission loss to Rose Namajunas at UFC Fight Night 80, while Rawlings will try to build on a two-fight win streak. She defeated Seohee Ham by decision in her last contest at UFC Fight Night 85.
UFC on FOX 21 takes place August 27th at the Rogers Arena in Vancouver, British Columbia.
Scheduled bouts include Anthony Pettis vs Charles Oliveira and Gareth McLellan vs Alessia Di Chirico.