Yahoo Sports reports: I came across an interesting stat this weekend. Entering Sunday’s game against the Portland Fire, the Sparks had the worst defensive rating (115.6 points allowed per 100 possessions) in WNBA history. The previous lowest mark through 30 seasons was 114. The eye test matches what the stats say about the Los Angeles defense. The Sparks are an offense-first team; the roster has a great deal of offensive talent, and that’s the side of the ball that coach Lynne Roberts prioritizes. Although L.A. targe