The NFL's leader rusher of 2011 reported tp the Jaguars Sunday morning, after missing all of training camp and the entire preseason.
The former UCLA standout had two years remaining on his existing five year $31 million contract, but held out to renegotiate for a longer deal.
The Jaguars' new ownership, led by Shad Khan, refused to work out a new deal and both sides eventually began taking shots at one another in the media.
Jones-Drew was upset with Khan after he called him out two weeks ago.
"Train is leaving the station. Run, get on it,"Khan said to the Florida Times-Union.
That comment sparked trade rumors, as Jones-Drew took offense.
The Jaguars could fine $30,000 for each day he held out, and also an additional $60,000 for missing mini-camp. There is no word yet on whether Jacksonville will go ahead with the fines.
For his career, Jones-Drew has collected 6,854 rushing yards and 62 touchdowns.