Assertion: handed backhand | /r/HasProperty | the norm
Facets:
value: by the 1980s
type: TEMPORAL
value: with using it
type: OTHER
Source sentences:
text: However, by the 1980s, the flat single-handed backhand was the norm for most single-handed backhand players, with marquee players such as Stefan Edberg, John McEnroe and Pete Sampras using it to great effectiveness.