In sports, when you challenge a player, you aren’t committing to them, you’re staying with them, you’re in front of them, you’re protecting your side and doing nothing else.
You’re an obstacle, something they need to work through, someone they need to break through to get to their goal.
Outside of sports, challenging is the same thing, you’re always pushing, always trying new things, always poking, always working, always breaking in.
If you’re not, you’re waiting for people to come to you, and that’s no challenge.