Along with the DLC that came out on Tuesday there was a game update.
It included 2 variants of stadiums and 2 new AI difficulties for Exhibition mode.
All-Star and Unfair
There's a trophy related to each one too. The All-Star one isn't that bad, just need to win a game with a particular sticker on your car. Unfair is a completely different animal. It's you against 4 All-Star AI's. It's no joke at all. I must have tried about 50 times last night over 30 minutes. Every time the AI would get 2 goals, I'd just restart the match. You're pretty much playing goalie the whole time. And if you make the slightest mistake, you will be scored on. Every. Single. Time. The furthest I got was 3-3 with 2 minutes left and 30 seconds later the AI scored 3 times cause I didn't clear the ball good enough.
So yeah, if you need goalie practice, this is the mode to test/hone your skills on.