ESPN is expressing concern that new television packages being offered by Verizon do not comply with its existing agreements.
Verizon launched FiOS Custom TV on Sunday. The base package, which costs about $55, has more than 35 channels - such as AMC, CNN and Food Network - plus two additional themed channel packs. The offer does not include internet service.
But the base package of 35 channels does not include ESPN or ESPN2. Those channels are available through a sports themed channel pack.
ESPN says "our contracts clearly provide that neither ESPN nor ESPN2 may be distributed in a separate sports package."
FiOS Custom TV currently has seven channel packs to choose from. Aside from sports, there are genres such as children and lifestyle.
Customers can add more channel packs - which include about 10-17 channels on average - for $10 each. They may also swap out channel packs after 30 days.
Other packages include Double Play, which has TV and Internet, and Triple Play, which includes TV, Internet and phone service. Double Play packages range from about $65 to $85 a month. Triple Play is priced between about $75 and $95 a month.
ESPN said in a statement that Verizon's new packages "would not be authorized by our existing agreements."
ESPN is owned by The Walt Disney Co.
Verizon did not immediately respond to a request for comment.
Disney's stock gained $1.19 to $107.88 in Monday morning trading. Verizon shares rose 22 cents to $49.12.
Copyright 2015 The Associated Press.