The Dolphins are looking to add quarterback depth due to injuries to their second- and third-string signal-callers. Matt Moore has a sore throwing shoulder, and Pat Devlin injured his hamstring in a scrimmage a week ago. In Miami's preseason opener against the Atlanta Falcons last Friday, undrafted rookie Seth Lobato played the entire game after the first series.
Grossman, 33, is a free agent after spending the last four seasons with the Washington Redskins. He hasn't played in the regular season since he started 13 games for Washington in 2011, serving as the team's emergency third quarterback the past two seasons.
In his 11 NFL seasons, Grossman has thrown for 10,232 yards, 56 touchdowns and 60 interceptions.
Skelton last appeared in a game in 2012, with the Arizona Cardinals. He threw two touchdowns and nine interceptions in seven games that season.
Quinn, a former first-round pick by the Cleveland Browns, last played for the Chiefs in 2012, throwing two touchdowns and eight interceptions. He was later signed by the Seahawks, Jets and Rams but did not appear in a game for any of them.
- Ben Estes and Molly Geary