Baseball superstar Ken Griffey Jr. of the Seattle Mariners will sign autographs at the Salt Lake Sports Card Extravaganza, 10 a.m. to 9 p.m. Saturday, Dec. 8, at Cottonwood High School, 5717 S. 1300 East. Also signing autographs will be Ken Griffey Sr., also of the Mariners, and first baseman Hal Morris of the World Champion Cincinnati Reds.

Admission to the show, which opens at 10 a.m. and runs until 9 p.m., is $3. There is an additional charge for autographs.Griffey Jr. will appear from 5:30-8:30 p.m., Griffey Sr. from 2-5 p.m., and Morris from 10:30 a.m.-1:30 p.m.

For information call 250-9798 or 825-4158.