To achieve success in any pro sport is a remarkable achievement. For most players, it takes a number of years for them to 'hit their prime'. As well, for most players, near the end of their careers, their skills start to diminish. However, some players achieve great feats at a very early age and others thrive well into their 40s when most of their contemporaries have retired. Time for you to demonstrate your knowledge of these tremendous athletes' accomplishments at very young or old ages.