When: 5 p.m. PDT.
Where: BOK Center, Tulsa.
Records: Sparks 3-4, Shock 2-5.
Record vs. Shock (2013): 4-1.
Update: The Sparks continue their up-and-down start to the season against the Shock in Tulsa with a new reinforcement. On Tuesday, the team signed free agent Samantha Prahalis, a 5-foot-7 guard who has averaged 8.8 points, 2.5 rebounds and 3.7 assists through her two WNBA seasons. During her first year in the league, she finished first among rookies in scoring and second to fellow Spark Nneka Ogwumike.