The Las Vegas-based promotion announced the bouts on Wednesday. UFC
Vancouver takes place at Rogers Arena on Sept. 14 and is headlined
by a lightweight showdown between Donald
Cerrone and Justin
Gaethje. The card will air in its entirety on ESPN+.
Smolka is currently on his second Octagon tour and is coming off a
first-round submission loss to Matt
Schnell at UFC Fight Night 146 on March 9. MacDonald suffered
his first loss in 11 pro outings in his promotional debut, as he
dropped a three-round verdict to Chris
Gutierrez at UFC Nashville on March 23.
Hubbard had a three-bout winning streak snapped in his first
promotional foray, a decision loss to Davi Ramos
at UFC Rochester on May 18. Prepolec also came up short in his
Octagon debut, falling to Nordine
Taleb via unanimous decision at UFC Ottawa.