Tests were being conducted on Wednesday, and the Dolphins expected to know more about Gadsden's condition either late Wednesday or Thursday.
The injury, if serious, could have some interest ramifications for a wide receiver group that certainly isn't lacking in quantity.
Regardless of the severity of the injury, it won't have an impact on the starting lineup because Derrius Thompson appears to have the job opposite Chris Chambers almost locked up with the way he's making great catch after great catch in practice.
Gadsden, for his part, was lagging behind. When the Dolphins ran their two-minute drill on Tuesday afternoon, the three wideouts on the field were Chambers, Thompson and rookie J.R. Tolver.
James McKnight was sitting out because of a shoulder injury, but Gadsden not being in there was somewhat interesting.
It tells us that Gadsden actually was no lock to make this team, regardless of what he has done for the Dolphins over the last few years.
No, even if he comes back quickly from the ankle injury, Gadsden clearly is fighting for a roster spot.
Chambers, Thompson and Tolver appear safe bets to make the 53-man roster, and the Dolphins probably won't keep more than five.
The wild card in the equation is Charlie Rogers, who should make the team as a kick returner but probably also will be used as a slot receiver at times.
The Dolphins know what Gadsden can do, but it's also clear he can't afford to miss too much time this training camp if he wants to be a big part of the offense.