What are some good early/pre-2012 Tanahashi matches?

I'm very familiar with his big matches and feuds post-2012 around the time of the rainmaker shock and towards the back end of his V11 IWGP heavyweight championship reign all the way to the modern day, but what are some big matches and feuds worth checking in his early years of being ace, and even before that?

That's where my blindspot of Tanahashi's career really lies.

by Gavvmark