Barnes & Noble Playing for Keeps by Jennifer Dugan

From the author of Some Girls Do comes another heartfelt Ya sapphic romance featuring a baseball pitcher and a student umpire who are definitely not supposed to fall for one another. June is the star pitcher of her elite club baseball team, with an ego to match, and she's expected to be recruited at the college level, just as her parents have always envisioned. However, she must contend with an overuse injury that has recently worsened. Ivy, on the other hand, isn't just umpiring to cover her athletic fees or earn extra cash; she aspires to officiate at the professional level, despite her parents' preference for her to attend college. When they first meet, Ivy ejects June from a game for grandstanding, but they soon transition from enemies to begrudging friends and then something more. However, the rules prohibit players and umpires from dating. As June's shoulder deteriorates and a rival threatens to expose their secret, everything they've worked for is jeopardized, forcing them to make a choice: follow their hearts or abide by the rules.