The stress of the game is starting to affect the players, some faster than others.  One player in particular might not make it to the end of the game.
I have to do it.
يجبُ عليّ فعلها
Tengo que hacerlo.
Tengo que hacerlo.
Je suis obligée de le faire.
Devo impedirlo.
Eu tenho que fazer isso.