A seemingly intrinsic part of the game of baseball is the keeping of statistics on the achievements of the players. Started by Henry Chadwick in the 19th century who devised the concept of batting average based on his experience of cricket. Commonly used statistics are explained here:
... title character, Anna, is the wife of the bureaucrat Karenin. She is invited from her home in St Petersburg to Moscow to mediate the marital discord of her brother ...