Just confirmed by the promotion, Nik Lentz takes on Mark Bocek in a match featuring grappling specialists.
Lentz (21-3-2, 1 no contest) will return to the octagon for the first time since being hit with an illegal knee by Charles Oliveira in a match that was ultimately ruled a no contest.
Lentz has yet to lose in seven UFC bouts, though he's had two matches end with unsatisfying conclusions: the previously mentioned no contest, as well as a January 2010 draw against Thiago Tavares.
Prior to the no contest bout against Oliveira in June, he'd won four straight, including a guillotine choke submission over Waylon Lowe, his first finish in the UFC.
Bocek (9-4) is an aggressive submission specialist who has earned seven of his career wins via tapout. He's gone 1-2 in his last three fights, sandwiching a triangle choke win over Dustin Hazelett between decision losses to top lightweights Jim Miller and Ben Henderson.
UFC 140 will take place on December 10 from the Air Canada Centre in Toronto. It will be the promotion's first time back in the city since selling out the 55,000 seat Rogers Centre for April's UFC 129.
Among the other bouts agreed to for the event are Frank Mir vs. Antonio Rodrigo Nogueira II, Tito Ortiz vs. Antonio Rogerio Nogueira, Dennis Hallman vs. John Makdessi, and Rory MacDonald vs. Brian Ebersole.