WR Michael Gallup retires on eve of Raiders' first practice

(Photo credit: Tim Heitman-USA TODAY Sports)

Wide receiver Michael Gallup has decided to retire rather than play this season for the Las Vegas Raiders, the club indicated Tuesday with the announcement he was placed on the reserve/retired list.

Gallup signed a one-year contract with the club in April.

The 28-year-old Gallup, who spent all six of his NFL seasons with the Dallas Cowboys, was placed on the list one day befo