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Sprint mulling bid for T-Mobile - report

Dec 13 (Reuters) - Sprint Corp is mulling a bid for T-Mobile US, according to a report in the Wall Street Journal citing people familiar with the matter.

Sprint could launch a bid in the first half of 2014, the report said.

Sprint is the third largest carrier in the United States, while T-Mobile is the fourth. A tie-up between the two could raise concerns among government regulators.