68In practice, as is apparent from paragraph 44 of the present judgment, that concept covers any practice capable of adversely affecting, by way of resources other than those which govern normal competition, an effective competition structure. It is therefore intended to penalise the conduct of a dominant undertaking which, on a market where the degree of competition is already weakened precisely because of the presence of the undertaking concerned, through recourse to means different from those governing normal competition in goods or services on the basis of the transactions of commercial operators, has the effect of hindering the maintenance of the degree of competition still existing in the market or the growth of that competition (judgments of 13 February 1979, Hoffmann-La Roche v Commission, 85/76, EU:C:1979:36, paragraph 91, and of 25 March 2021, Deutsche Telekom v Commission, C‑152/19 P, EU:C:2021:238, paragraph 41).
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