Dallas Cowboys vs. 49ers: Stephon Gilmore, Brock Purdy will be very important on Sunday - Blogging The Boys
Pride, a leaderboard and 'ubuntu': Cowboys' special teams has become critical X-factor - The Athletic
Prescott TD pass lifts Cowboys to 35-29 OT win over Pats
Derek Rivers and Deatrich Wise to be key X factors in 2018
Game Changers Part 1: LTD C. Lamb, J. Herbert, T. Campbell and more - Madden Ultimate Team 23
Analysis: Patriots List Five Players as Questionable for Sunday's Game vs. Cowboys
The biggest X-factor variable for each NFL team in the 2023 season - Sports Illustrated
X Factors: 10 game-changers for Cowboys, Patriots
Good, bad and ugly: Red-zone play ruins Cowboys' perfect performance vs Pats
Unfiltered Roundtable: Saints threats, x-factors and which Patriots must step up