최상급을 비교급으로 표현하는 방법 질문

중학교 영어 문제인데요.
“He had scored more goals than any other soccer player at that time.”와 같은 뜻을 찾는 문제입니다.
“No other soccer player at that time had scored as many goals as he.”는 이해가 되는데요.
“No other soccer player at that time had scored most.”는 왜 답이 안 되나요?