Portland, OR -- (Sports Network) - Portland Trail Blazers swingman Martell Webster was diagnosed with a stress fracture in the fifth metatarsal of his left foot on Wednesday.

The injury occurred in Portland's preseason game Tuesday against Sacramento. X-rays taken Tuesday night showed the injury, and further tests on Wednesday confirmed it. Webster will be re-evaluated on Thursday to determine a treatment and timetable for his return.

Webster has spent each of his three NBA seasons with the Trail Blazers, and in 2007-08 posted career-high averages in points (10.7) and rebounds (3.9) in 75 games (70 starts).