What happened: The agreement is official ahead of the club's first open training-camp practice on July 26. McLachlan enters camp competing for a reserve tight end role.
Why it matters: His arrival deepens the competition for snaps as training camp opens. The short commitment preserves San Francisco's roster flexibility beyond 2026.
By the numbers: McLachlan measured 6-foot-5 and ran a 4.61-second 40-yard dash before the 2024 draft. He has appeared in two NFL games.
What to watch: His practice reps and preseason role will show where he stands in the tight end rotation.