The History of Soccer (Football)
shrank = Past Simple from shrink = to become or make smaller in size or amount
gifted = talented
fleet of foot = IDIOM able to run fast
swift of mind = IDIOM able to think or act rapidly
eccentric = strange or unusual
goalscorer = a sports player who scores a goal(=earn a point)
bending motion = a movement that causes a curve or a decrease in the angle between parts of an object
See also
Guidelines for Soccer Field Markings
SOCCER RULES | PART 2