Rypien signed with the Broncos' practice squad on Sunday, Mike Klis of 9News Denver reports.
Rypien was in contention for the No. 2 job behind Joe Flacco with Drew Lock (thumb) sidelined, but the Broncos ended up claiming Brandon Allen off waivers to fill the role. Rypien completed 27 of 44 passes for 207 yards with one touchdown and two interceptions in three preseason games.