Al Roker visited the Today show on Tuesday–although he's not back full-time yet–and opened up about how recovery from his recent knee surgery is going.

The 68-year-old, who has had knee replacements before, shared that this one was quite difficult, but it wasn't surprising to him, especially due to some "complications" he faced.

Roker said, "I am doing fine. It is good to see all of you. I'm going to be honest. I've had a number of replacements, knee replacements. It’s not a big surprise."

"This one has been the toughest one yet because they had to take out the old one, which had some complications, and then put in a new one," he continued.

Based on Roker's comments, it seems like his May 9 surgery was basically done to fix a huge complication with the previous knee surgery done 23 years ago.

While showing the Today show cast an X-ray of his new knee, Roker shared in detail what the doctor did during the recent surgery: "It goes all the way up into the femur, down to the tibia, and then there's a hinge between, so they really had to do a lot of work to get the old stuff -- the old hardware out, the new hardware in, plus there's a titanium cone in there for the bone to grow."

"So, this has been more work," Roker proclaimed.

Despite that, the weathercaster was already walking on his new knee the day after the surgery, sharing a video of the experience with his fans on social media.

View the original article to see embedded media.

But Roker also shared what the "toughest part" of this recovery has been, saying, "I was feeling good because the nerve block hadn't worn off yet, so I started cooking. And my doctor saw my Instagram, and he was like, 'No. We're not doing that.' So, the thing is, to actually stay off the knee and to ice and elevate and I'm doing physical therapy."

While his recovery is still ongoing, Roker also happily announced that he will be back to his post on the Today Show next Tuesday, May 30!