Screens display the logos and trading information for Capital One Financial and  Discover Financial as traders work on the floor at the NYSE in New York

Screens display the logos and trading information for Capital One Financial and Discover Financial as traders work on the floor at the New York Stock Exchange on Tuesday. 

Capital One Financial's $35.3 billion deal for Discover Financial would create new competition for payments behemoths Visa and Mastercard , potentially helping smoothen the path for regulatory approval, analysts said.

The all-stock deal announced on Monday would create the biggest U.S. credit card issuer, but it would also give Capital One access to Discover's payment network, allowing it to rely less on payments giants Visa and Mastercard.