The Circle (Hammer) by Elfgren. Sara B

Ethan Feld has never been prone to adventure or attention, especially since he's often ridiculed about his lame baseball playing. But after he awakens one day to find a 
werefox
 sitting on his chest, Ethan learns he's ripe for a "fantastic destiny" in the Summerlands -- part of a connected, hidden world, where small American Indian-like ferishers play ball, and evil Coyote is thirsty to destroy the universe. Ethan agrees to the job, but when his father is kidnapped, his mission becomes more personal than he bargained for. With a team of ragtag players called Big Chief Cinquefoil's Traveling Shadowtails All-Star Baseball Club -- including the feisty pitcher Jennifer T., Thor Wignutt (a boy who's not quite a boy), a she-Sasquatch named Taffy, and the Anaheim Angels' Rodrigo Buendía -- Ethan treks through the Summerlands playing against incredible creatures and an impending time limit, hoping to reach his dad. Little does he know, however, that his abilities will be tested in the biggest baseball showdown of all time.