The recovery from myocarditis due to a viral infection is usually rapid and the heart reverts to normal rhythm. Serious myocarditis can lead to heart failure. Pericarditis is inflammation that affects the inner and outer membranes that surround the heart.
When Wilson had his tryout with the Baltimore Black Sox, he earned the nickname Boojum because of the sound his line drives made when they hit the fence during batting practice.
For fifty years cricketers had bowled underarm; then cam along a bowler who introduced the round-arm or over-arm style we know today. It was greatly opposed at first, but one team that did bowl over-arm thrashed an All England team twice in three matches, it quickly became popular.