As for Henne, he remains unsigned. He's the only of the nine Dolphins draft picks not signed.
Henne missing the first practice was no big deal, but it might become a big deal if it takes a while for him to sign.
The Dolphins made official on Saturday the signing of second-round pick Phillip Merling to a multi-year contract.
It was one of four roster moves announced by the team.
The team also signed wide receiver Anthony Armstrong, who is coming off a season in the Arena League.
On the flip side, the Dolphins released wide receiver Justin Wynn and offensive tackle Dan Gore.
The moves left the Dolphins with 80 players on the roster, and that includes Henne. That means the team won't have to cut a player once Henne signs.
The first cuts come on Tuesday, Aug. 26 when teams have to get down to 75 players.