Underspin definitions

underspin

Spin of a ball where the top of the ball rotates away from the direction of travel; the spin is underneath the ball, causing the ball to float and to bounce at a lower angle to the court.
Found on http://en.wikipedia.org/wiki/Glossary_of_tennis_terms

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underspin

Same as backspin.
Found on http://www.encyclo.co.uk/local/21422

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Underspin

spin of a ball where the top of the ball rotates away from the direction of travel; the spin is underneath the ball, causing the ball to float and to bounce at a lower angle to the court.
Found on http://www.translationdirectory.com/glossaries/glossary148.htm

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