Solved
How to automatically defend?
Which key can automatically defend?
There is no button that makes you automatically chase the puck carrier. That needs to be done manually. I wouldn't recommend chasing them though. That tends to lead to having defenders out of position. You should be trying to anticipate what they could do by looking at their available options. Keep an eye on their teammates and look for passing lanes to cut off. Stay in front of them and use the defensive skill stick and poke check. If you get a good opportunity, from the front, the stick lift can be good for causing a turnover. You can also hit or just bump them to try to knock the puck loose.
Here's a video one of the game changers made with some good tips on playing defense:
