Spielman and new assistant head coach/quarterbacks coach Marc Trestman were the Dolphins representatives watching Henson, and they were joined by officials from about 20 NFL teams.
Spielman and Trestman were supposed to meet with Henson on Friday to talk football.
Henson has become a hot commodity and the Houston Texans are hoping to sign him and trade after spending a sixth-round pick on him last year while he was still in the middle of his failed baseball career.
The big question with Henson is when exactly he'll be ready to play in the NFL after not playing football since 2000 and also just how big a price will it take to get him away from Houston.
It's probably far-fetched to think the Dolphins can get him for anything less than their first-round pick, which is the 20th overall.
In other news:
-- The Dolphins announced their new ticket prices for the 2004 season and it includes a slight increase. Single-game tickets will now range from $25 to $64. The Dolphins' average gross ticket price ranked 29th in the league in 2003.
-- The Dolphins signed long-snapper William Delahoussaye as a free agent on Friday. Delahoussaye went undrafted out of Louisiana-Lafayette last April and did not attend an NFL training camp. Delahoussaye is 6-2, 242.