Solid footing in the Ultimate Fighting Championship light heavyweight division has proven elusive for William Knight and Marcin Prachnio.

Their uncertain paths will cross in a featured UFC Fight Night 219 attraction on Saturday at the UFC Apex in Las Vegas, where fists and feet figure to fly. Knight enters the cage on the heels of back-to-back losses. The Thornton Martial Arts product last appeared at UFC on ESPN 34, where he succumbed to an elbow strike and follow-up punches from Devin Clark in the third round of their April 16 pairing. Prachnio, meanwhile, has won two of his past three bouts. The One Championship veteran last competed on April 23, when he dropped a three-round unanimous decision to Philipe Lins at UFC Fight Night 205.

As Knight and Prachnio barrel toward their forthcoming encounter at 205 pounds, a look at some of the numbers that have accompanied them to this point:

34: Years of age for Knight, who was born on April 3, 1988 in Manchester, Connecticut.

9: Knight victories by knockout or technical knockout, accounting for 82% of his career total (11). His list of victims includes Fabio Cherant, Cody Brundage and Jamelle Jones. Knight owns two other victories by decision (18%).

128: Seconds needed for Knight to cut down Tom Velasquez with punches in his May 4, 2018 professional debut under the Reality Fighting banner. Nearly five years later, it remains his fastest finish to date.

97: Significant strikes landed by Knight in a third-round TKO of Herdem Alacabek in August 2019 during his first of two appearances on Dana White’s Contender Series. He has not connected with more than 55 such strikes in any of his six UFC assignments.

.737: Cumulative winning percentage between the four men—Clark, Maxim Grishin, Da Woon Jung and Tafon Nchukwi—who have beaten Knight. They boast a combined record of 67-23-3.

34: Years of age for Prachnio, who was born in Warsaw, Poland, on July 14, 1988.

11: Prachnio wins by knockout or technical knockout, accounting for 73% of his career total (15). His list of victims includes Isaac Villanueva, Gilberto Galvao and Alexandre Machado. Prachnio holds one other win by submission (7%)—he put away Milan Vincic with a rear-naked choke at a Bosnia Fight Championship show in 2013—and three more by decision (20%).

2: Sub-minute finishes on the Prachnio resume. He buried Stjepan Bekavac with knee strikes in 35 seconds at Final Fight Championship 14 on Oct. 3, 2014 and wiped out Ryan Salamagnou with punches in 21 seconds at a Hit Fighting Championship event on June 27, 2015.

13: Countries in which Prachnio has competed as a professional mixed martial artist. He has gone 1-3 in the United States, 2-1 in Croatia, 2-0 in Bosnia-Herzegovina, 2-0 in Indonesia, 1-1 in Austria, 1-0 in England, 1-0 in the Netherlands, 1-0 in Slovenia, 1-0 in Switzerland, 1-0 in Thailand, 1-0 in China, 1-0 in the United Arab Emirates and 0-1 in Russia.

95: Combined victories between the six men—Lins, Mike Rodriguez, Magomed Ankalaev, Sam Alvey, Aleksandar Rakic and Ivica Tadijanov—who have defeated Prachnio. They sport a cumulative .716 winning percentage at 95-37-2.