181In that regard, the case-law shows, in particular, that, where the relevant market has been liberalised, as in the present case, the Commission is not required to analyse the structure of the market and the question whether entry to that market would correspond to a viable economic strategy for each of the parties (see, to that effect, judgment in E.ON Ruhrgas and E.ON v Commission, cited in paragraph 99 above, EU:T:2012:332, paragraphs 89 to 93), but that it is required to examine whether there are insurmountable barriers to entry to the market that would rule out any potential competition (see, to that effect, judgment in Toshiba v Commission, cited in paragraph 178 above, EU:T:2014:263, paragraph 230).
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