Guzan has signed a new four-year deal with Aston Villa.
"This is just the start now, the start of hard work. We have to build on last year and go forward and that is very much the collective mindset at the club," Guzan said on Villa's official website.
"We grew together as a team last season and now it's time to kick on again. We'll welcome the new guys with open arms and allow them to join this special family that we've started to create from last season. It's an exciting time for the club for sure.
"When you bring in new players you have fresh bodies, fresh blood, fresh excitement and you need that to prevent things from becoming stale and guys getting complacent. You want competition for places, you want guys pushing each other and helping each other. When you bring in new faces it lifts everybody.
"For me, it's an honour and a privilege to play for Aston Villa Football Club and to commit my future long-term. I'm overjoyed by it."