It will complement Eurosport 1, Eurosport 2 and Sport 2, the other sports channels already distributed by the platform.
Sport 1 will be placed in the Plustelka Standard package, which costs €2.99 a month on a pre-paid basis for one year.
The promotional price is offered when the service is pre-paid up until the end of 2017.
However, FTA viewers will be able to watch the channel in the first week of August.
Sport 1 will be the fourth channel that Plusteka has added to its line-up in recent months, the others being Markiza, Doma and Dajto.