бредятина

Valery, what did you fix?

Valery: Is this a difficult sport to LEARN and PLAY? Why?

the verb ОСВОИТЬ means both to learn and to exercise some activity, hence no translation for DO is required in this case

In English, we can also say “master“ a game. However some games are difficult to learn, but easy to play once you know the rules. Other games are difficult even when you know how to play them. For example, chess is very difficult to learn in that you have to learn the way every piece on the board moves and many ground rules. It is also difficult to play. It has a lot of strategies and you have to simultaneously be on the defensive and the offensive.