About: http://webisa.webdatacommons.org/132525614

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The very nature of the open stance topspin shot adds strain to the shoulder especially if you try to over hit the ball and on off center hits.
http://www.w3.org/ns/prov#wasQuotedFrom	usta.com