How do you have to swing a racket to spin the ball parallel to its trajectory ?
In Test cricket , the same ball must be used for at least 80 overs unless it is lost , damaged or illegally modified and then it must be replaced with a ball of a similar condition , after which , obtaining a new ball is at the discretion of the fielding captain whereas , in baseball the ball is replaced numerous times during a game to ensure it is in optimum condition .