And the answer is: Because the catgut on the racquet.
"The Radio Boys at the Sending Station" by Allen Chapman
Sterilised silk and catgut for sutures.
"The Elements of Bacteriological Technique" by John William Henry Eyre
Two small girls are scraping doleful strains from the sad catgut of violins nearly as big as themselves.
"The Atlantic Monthly, Volume 20, No. 121, November, 1867" by Various
Do you think I can't scrape catgut as well as Pere Paragot?
"The Belovéd Vagabond" by William J. Locke
They should be of catgut, and if you tune them in unison, the sound will be sweeter than if they are tuned in thirds or fifths.
"Harper's Young People, April 6, 1880" by Various
A simple hygrometer can be made by a piece of catgut and a straw.
"Harper's Young People, August 17, 1880" by Various
Ods catgut and fiddlesticks!
"The Bow, Its History, Manufacture and Use" by Henry Saint-George
I hear Mrs. Catgut has some of the prettiest caps arrived you ever saw.
"The Contrast" by Royall Tyler
The banjoes was made of round pieces of wood, civered with sheepskin and strung with catgut strings.
"Slave Narratives: a Folk History of Slavery in the United States From Interviews with Former Slaves" by Work Projects Administration
Fiddlers, to your catgut!
"The Works of Robert Louis Stevenson, Volume XV" by Robert Louis Stevenson
Troopers should be all wire and catgut.
"A Soldier's Trial" by Charles King
Live an let live, that's my motto; catgut-makers are our neighbours; Knackers we no right have got to stop from following their labours.
"Punch - Volume 25 (Jul-Dec 1853)" by Various
Both ends were gracefully tapered, each notched to hold a string of catgut.
"Warrior of the Dawn" by Howard Carleton Browne
He wanted me into the cabin, but I'd taken a dislike to catgut, so Ginger got orders to shoot me.
"A Man in the Open" by Roger Pocock
Instead therefore of finishing George's shirts, we now had them new-modeling their old gauzes, or flourishing upon catgut.
"Library of the World's Best Literature, Ancient and Modern, Vol. 16" by Various
The instrument has three catgut-strings, beneath which are placed seven thin strings of wire.
"Musical Myths and Facts, Volume I (of 2)" by Carl Engel
Then he bound her with the catgut, so that she was not able by any means to unloose herself.
"Sagas from the Far East" by Various
It is only horsehair scraping on catgut.
"The Meaning of Faith" by Harry Emerson Fosdick
Uncle Billy was off now in earnest, with a squeaking and a shrieking of the catgut.
"The Rival Campers Afloat" by Ruel Perley Smith
Strangely enough, the music failed to calm their spirits until I had ceased for a time to torture the catgut.
"The Awakening of the Desert" by Julius C. Birge