Devin Harris' preseason hamstring problem is the most concerning injury for Dallas among a quartet of ailing starters and key reserves.

The Mavs opened the preseason with four of their top seven players out, and that may not change tonight when Sacramento visits American Airlines Center.

Harris' injury ? the team is calling it a strain that will cost him seven to 10 days ? is a setback, not only for the team but particularly for Harris, who made big strides in the playoffs last season.