"But he has the unconditional support from within the team. I think from year to year, it makes him more eager to win.
"Winning against the best guy could probably be the most satisfaction a racing driver could have. But it takes its toll, it is to be expected."
Wolff could be heard giving Bottas a pep-talk during the final qualifying session at the season-ending Abu Dhabi Grand Prix, something he later revealed was as a result of discussions between the pair.
But Wolff has insisted the support given does not come from a single source.
"It is not only me he has this unconditional support from - it is all the team," added Wolff.
"He is able to pick himself up, he has a family that does that and then his team-mates, all of us."
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