<p><a class="Link" href="https://chicago.suntimes.com/chicago-sky" target="_blank" >Sky</a> forward Rickea Jackson underwent surgery for her torn left anterior cruciate ligament, the team announced Friday. She suffered the injury May 17 against the Lynx.</p><p>Acquired in an offseason trade with the Los Angeles Sparks, Jackson was playing the best basketball of her career before the injury. She led the Sky with 18 points per game and had improved defensively, averaging 1.8 blocks.</p><p>Jackson helped the Sky open the season 3-1, and they have struggled to replace her production.