Jharal Yow Yeh became just the latest in a long line of rugby league careers destroyed by injury he called time on his rugby league career at just 24 on Monday.After playing in both the Brisbane Broncos' trial games this preseason, it dawned on him that playing on in the NRL would be impossible.As the myriad of insurance advertisements on TV tell us, injuries are a part of life.Add in dozens, or e