Heavy Hitter by Lucy McConnell

Calling all contestants! The Redrocks are holding open tryouts for their new mascot.
Anything could happen—on the field and in love—when the stadium lights turn on.
Sheila Weaver, community outreach specialist for the St. George Redrocks, is the person the players groan when they see coming. She gets it—she’s the one who schedules their public appearances and chips away at their limited free time. But, she’s got a plan to involve the whole community in selecting the team’s mascot and the drive to make it happen despite her older sister’s insistence that she could have done better in life.
Brock Mattock, center fielder for the Redrocks, has fallen for the wrong woman before—several times. With a bruised heart, he accepts a dinner invitation from Sheila’s sister, Kelly, only to discover that she’s not at all like the dynamic woman he’s admired from afar. Sure that he knows which sister he truly wants, he has to convince Sheila that he’s not playing games.
Even though she’s attracted to Brock, and impressed with the type of man he is on and off the field, Sheila has no intention of moving in on her sister’s guy. But Brock is patient and sweet and volunteers to help with her off-season project, slowly chipping away at her defenses. When a stolen locker-room kiss ignites a fire neither of them can deny, Sheila has to face her sister’s wrath and the possibility that her love for Brock may tear her family apart.