Unseen Academicals (Discworld, #37)

The 37th Discworld novel is set against a backdrop of the culture of soccer football in magical Ankh-Morpork city. Not the old fashioned, grubby pushing and shoving, but the new, fast football with pointy hats for goalposts and balls that go gloing when you drop them. The wizards of Unseen University must win a football match, without using magic. The Big Match draws in a street urchin with a wonderful talent for kicking a tin can, a maker of jolly good pies, a dim but beautiful young woman who might just turn out to be the greatest fashion model ever, and the mysterious Mr Nutt, who knows less about himself than others do. Four lives are entangled and changed forever.