Pettis, 6-2, 200, was originally selected by the San Francisco 49ers in the second round (44th overall) of the 2018 NFL Draft out of the University of Washington. The San Clemente, Calif. native has played in 61 career games with 19 starts for the 49ers (2018-20), New York Giants (2020-21), Chicago Bears (2022) and Saints (2024-25), recording 84 receptions for 1,118 yards (13.3 avg.) and 13 touchdowns, along with three carries for 35 yards. He has also completed both of his pass attempts for 32 yards. On special teams, Pettis has returned 45 punts for 324 yards (7.2 avg.) and nine kickoffs for 240 yards (26.7 avg.).

In 2025, Pettis has appeared in three games with the Black and Gold, catching one pass for 14 yards, returning seven punts for 30 yards and five kickoffs for 126 yards. In 2024, Pettis joined the Saints practice squad in Week Seven and appeared in the club’s final eight games, catching 12 passes for 120 yards with one touchdown and caught one two-point conversion. As the Black and Gold’s primary returner, he brought back seven punts for 90 yards (12.9 avg.), including a career-long 53-yard runback, and returned three kickoffs for 96 yards (32.0 avg.). Pettis’ contributions in 2024 helped the Black and Gold’s punt return unit rank fifth in the NFL for average yards per return (12.5).