Head coach Kyle Shanahan said Friday that general manager John Lynch has taken a "number of calls" about the 2018 second-round pick, according to Eric Branch of the San Francisco Chronicle.
Shanahan added that no deal is imminent.
Though the 49ers' receivers have combined for just 610 yards through six games, Pettis has apparently fallen out of favor. He saw one target in Week 1 and hasn't recorded a catch all season.
The 25-year-old recorded 467 yards and five touchdowns in his rookie campaign before posting 109 yards and two scores in 2019.