We've seen him from all those previous fights where he won and continue to dominate his division.
Plant needs to outsmart Canelo if he wanted to win this fight, he can use the same tactics observing and trying to absorb those heavy
punches that Canelo may throw to him and find the better angles where to hit back and try to make killer punch to win.
The last time Canelo lost was 8 years ago, against Floyd Mayweather Jr. (fight for WBA light middleweight title). You can check the highlights of the fight here:
https://www.youtube.com/watch?v=hws-4eDDchw
Floyd wasn't overly aggressive in the beginning. He used his maneuverability and reflexes to frustrate Canelo. But almost a decade has passed since this fight and Canelo has improved a lot. So I am not sure whether Plat will be successful if he tries with the same approach.
Watching the highlights, I'm impressed with Mayweather's performance here as he was not running, he fought Canelo toe to toe and the fans seem to be happy watching the fight. Canelo has really improved, but we did not also see a new Mayweather with a good defensive style, so the competition is not too high though.