The UFC is returning to Vancouver. for UFC on FOX 21.
Welcome back to The Crossfire.
Pettis is trying to curb the first three-fight losing streak of his career, while Oliveira earned a decision win over Myles Jury last December at UFC on FOX 17.
Other scheduled fights include Garreth McLellan (13-4-0) taking on Alessio Di Chirico (9-1-0).
The last UFC card Vancouver hosted was UFC 174 in June of 2014.
UFC on FOX 21 takes place August 27th from the Rogers Arena. Tickets go on sale to the general public Friday, July 15h at 10AM PT.