Tennis ball maker Penn is taking exception to some advertising claims by Dunlop and has served its rival with a federal lawsuit.
Penn Racquet Sports Inc. and parent, Head USA Inc., filed a claim of false advertising Monday in US District Court in Connecticut.
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The lawsuit claims that Dunlop International Ltd. and Dunlop Sports Group Americas Inc. have been misleading the public by labeling Dunlop balls as the “World's No. 1 Ball” and boasting that it has a 70 percent share of the global tennis ball market.
Penn argues Dunlop doesn't have the largest worldwide share and shouldn’t be allowed to use the No. 1 claim.
The lawsuit says Dunlop agreed to stop using that word but hasn't.
Neither side responded to messages left on Monday seeking comment.
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