Sentence:  Sometimes he would bowl to one of his children, and although on the field (a small strip of garden) there were only two cricketers, he would turn it into an England "v." Australia match. The one batsman would stand for eleven men, and the one <WSD>trundler</WSD> would play the part of the regular and change bowlers ... 
Meaning of the word marked with <WSD> tags:  A bowler (player throwing the ball).