Robert Karlsson has been having a great run the last couple of years. He has multiple wins and a very steady game. He will be tough in match play, as he is solid from tee to green.
Karlsson is tall. He stands 6'5". If you are tall you will want to follow his setup and swing. Even if you are shorter in height you can learn a lot from his setup.
Karlsson stands tall at address. It is true that you want to have a slight bend at the knees and at the hips, however you want to be tall when you do that. Staying tall in your setup makes it easier to make a solid turn and maintain your balance. If you bend over too far you will most likely lose balance towards your toes, which will make it hard to hit solid shots online.