https://www.reuters.com/article/us-liberty-global-m-a-vodafone-telefonic/vodafone-liberty-deal-would-create-cable-monopoly-telefonica-deutschland-idUSKBN1IA1XT >Telefonica Deutschland , Germany's third-largest mobile operator, said Vodafone's proposed $21.7 billion takeover of Liberty Global's European assets would lead to excessive market concentration.