The San Francisco 49ers have officially signed the final member of their 2025 rookie class—second-round pick Alfred Collins—ending any speculation that the defensive tackle might hold out when training camp practices begin next week.

Immediately, dominoes started to fall. The Baltimore Ravens are reportedly close to a deal with their second-round pick Mike Green, the Denver Broncos agreed to a contract with R.J. Harvey, and the Chicago Bears reached terms with two of their three second-rounders.

Broncos agreed to terms with running back RJ Harvey on a standard four-year rookie contract, a source told The Post.

Rookie defensive tackle Alfred Collins is finally on board with the San Francisco 49ers following a lengthy contract stalemate.

The next big domino in the second round has fallen: 49ers’ second-round pick Alfred Collins, the No. 43rd overall selection, reached agreement tonight on a four-year, $10.3 million deal that includes over $9 million guaranteed and now is expected to trigger multiple second-round signings,