Deals of the day-Mergers and acquisitions

(Adds Global Payments, Uniper, Petrobras, Manchester United, SBA Communications and Walmart)

Feb 13 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2100 GMT on Tuesday:

** Global Payments is closing in on a deal to acquire Britain's Takepayments, expanding its business abroad that provides payment processing to retailers, two sources close to the matter told Reuters.

** Germany is preparing to test investor interest in a stake of up to 30% in Uniper as the government seeks to recoup some of the billions it spent bailing out the utility at the height of the energy crisis, three people familiar with the matter said.

** Brazilian state-run oil company Petrobras hopes to settle details of a tie-up with Mubadala to take back control of the operation of a refinery owned by the Abu Dhabi sovereign investor by the end of the first half of the year, Petrobras' chief executive said.

** British billionaire Jim Ratcliffe's acquisition of a 25% stake in Manchester United was ratified by the Premier League on Tuesday after he passed the organisation's Owners' and Directors' test.

** U.S. wireless tower operator SBA Communications Corp , Blackstone-backed Phoenix Tower and Spanish fund Asterion Industrial Partners are vying for Cellnex's Irish unit, according to five sources familiar with the matter.

** Walmart is in talks to buy smart television-manufacturer Vizio for more than $2 billion, the Wall Street Journal reported, citing people familiar with the matter.

** Korean Air won EU antitrust approval to buy Asiana Airlines after the companies agreed to sell the latter's cargo unit and divest routes to four European cities to a rival.

** Indonesia's GoTo, one of Southeast Asia's biggest ride-hailing companies, said that it was not in any discussion with Grab Holdings about a potential merger.

** Shares in Tod's rose 18.37%, after private equity firm L Catterton offered to buy 36% of the luxury shoemaker and take it private, in agreement with the Della Valle founding family. (Compiled by Rajarshi Roy and Harshita Mary Varghese in Bengaluru)