The Farm Team by Linda Bailie, illustrated by Bill Slavin

From chapters.ca:
For fifty years the animals on Stolski's farm have played their hearts out for the Stolski Cup - the dream of every hockey team all over the northland. And every year, the Farm Team has lost to the nastiest, smelliest, snarlingest bunch of varmints ever to don skates - the Bush League Bandits. As soon as the puck drops for this year's playoff game, the Bandits, playing as dirty as ever, take an early lead. From the award - winning team of Linda Bailey and Bill Slavin and packed with on-ice action and laughs, this is the picture book hockey fans of every age have been waiting for.