Porter ran for 188 yards and three TDs in Katy's 34-7 victory over Lake Travis for the Class 6A Division II state title last season.
And Porter did that on a badly sprained ankle that required surgery at the end of the season.
"Kyle's a really tough kid who grew up wanting to be a part of the Katy program," Joseph said. "He got hurt in the eighth game of the season and missed three games. But he wanted to be a part of the playoffs, and he carried the ball 31 times in the state championship game.
"I wanted to take him out. But he wouldn't come out. Kyle is a really special young man - great student, great teammate. I hear he's doing well in camp with Texas. That's great. I'm happy for him."
Porter had surgery on his ankle when Katy's state title run ended, and Texas running backs coach Anthony Johnson said Porter is moving "a lot better" than when he ran for 188 yards and three TDs against Lake Travis at NRG Stadium.
Charlie Strong is also a big fan of Porter, who gained notoriety during recruiting for NOT participating in social media.
"Kyle is a really strong runner who runs really well behind his pads," Strong said. "He's got a chance to be a really good player here at Texas."
Strong tells a funny story about Porter during his official visit to Texas. After it became clear Devwah Whaley was going to go elsewhere to attend college, Porter was at the top of Texas' running back recruiting board. Truth be told, Kam Martin probably wanted to commit to Texas in the summer of 2015 - but Strong told him to take his time and be sure.
That reaction from Strong probably caused Martin to get the giant "BU" tattoo on his shoulder that he tweeted out. The bottom line: Strong wanted Porter more than Martin.
But when Porter came to Austin for his official visit, he didn't really hang out with other recruits on their official visits or even with current players from Texas. Strong sensed as much while they were at the Texas-West Virginia basketball game and offered to take Porter back to his hotel if Porter wanted to stay and watch the basketball game with Strong.
So Porter, who was also strongly considering TCU, stayed with Strong for the hoops game - and asked Strong if he could meet with Chris Warren III and D'Onta Foreman the following day. Strong thought to himself, "Oh boy, we're never going to get him if he wants to talk to those guys."
And then Porter left his visit and Texas didn't hear from him. Strong figured Porter had met with Warren and Foreman and moved on. And then the week before signing day, out of the blue, Porter called Strong and said he wanted to commit to Texas.
Strong said he had to get Porter to repeat what he'd just said to make sure Strong heard him correctly. And then Strong gathered up the rest of the Texas coaching staff and made Porter tell them, too. A dance party broke out among the coaches in Strong's conference room outside of his office.
Flash forward: Everything we've heard coming out of fall camp is that Porter looks like he belongs - mentally and physically. And he's the only back who has stayed healthy all through camp. All indicators are that Porter's opportunity to become a special player at Texas will likely begin as soon as Sept. 4 - against Notre Dame.