Storm sign veteran Tina Thompson

SEATTLE -- Already loaded, the Seattle Storm added another All-Star to the lineup by signing forward Tina Thompson, the WNBA's all-time leading scorer.

Seattle announced Thompson's signing on Monday. She spent the last three seasons with the Los Angeles Sparks and finished the 2011 season with 6,751 points, ahead of Katie Smith (6,015) and Lauren Jackson (5,915). Smith and Jackson are now her teammates with the Storm.

Thompson is an eight-time All-Star during a 15-year WNBA career. She also won Olympic gold medals for the U.S. in 2004 and 2008.

The 37-year-old Thompson started 33 of 34 games last season for Los Angeles and averaged 9.9 points, the lowest total of her career. Two seasons ago, Thompson averaged 16.6 points for the Sparks.

Seattle also re-signed reserve forward Ewelina Kobryn on Monday.