NFL Network's Ian Rapoport reports that former Jaguars WR D.J. Chark is signing a 1-year deal with the Lions. The contract will pay $10 million guaranteed, with a max value of $12 million (per ESPN's Adam Schefter). Chark suffered a broken ankle in Week 4 of last season, which is almost certainly why he's landing only a "prove it" deal in his 1st crack at free agency. Detroit presents obvious opportunity in an offense that was light on WR talent last season. Amon-Ra St. Brown was the only Lions wideout to exceed 71 targets or reach 50 catches. We'd bet on St. Brown beating Chark in targets this season, but Chark adds a significant challenge to St. Brown on that front and lowers the fantasy ceiling for the 2nd-year WR. Getting Jared Goff as his QB, though, also limits the ceiling for downfield threat Chark.