Pacheco Provides 'Pop' in Lions' Backfield While Awaiting Gibbs' ReturnJuly 31, 2026Associated Press / news@whmi.com“Knuckles” already punched his ticket out of town. For now, Isiah Pacheco is providing the power and speed to the Detroit Lions' backfield. During the last three seasons, Jahmyr Gibbs and Montgomery earned the nickname “Sonic and Knuckles” as one of the NFL's premier running back duos. Eventually, the Lions' backfield could turn into "Sonic and Pop," though Pacheco anticipates that they'll earn a different moniker. This is extra reps for ‘Pop’ with us just in our system, so that’s awesome,” head coach Dan Campbell said.