The San Francisco 49ers could be on the verge of losing one of their best passers from last season. defensive end Key of Arden racked up a career-high 6.5 sacks in 17 games with the 49ers, second on the team only for Nick Bosais 15.5.

According to NFL Network’s Mike Garafolo, Key kicks off his free agency tour with a visit to the Detroit Lions.

Key hasn’t ruled out returning to the 49ers. Although the Bay Area team is unlikely to enter a bidding war for the defender, should one begin.

“I want to come back,” Key told fans during an Instagram Q&A (h/t TheSFNiners). “M–t, they must want me back. Well, they want to me to come back. We have to see if the money is good.”

San Francisco has already lost two defensive linemen in free agency. Fan Favorite DJ Jones signed with the Denver Broncos and Kentavius ​​Street left for the New Orleans Saints. While Key could be next, he acknowledged in January that there was something different about the 49ers locker room.

“A lot of teams say we care about each other, we want to see everyone succeed and everything, but we really mean it here,” Key said. “It really is a brotherhood. And I don’t want it to end.”