KISSIMMEE, FL (Kiii Sports ) - The Houston Astros were expecting to see one of their top prospects Jon Singleton in Triple-A Oklahoma City to start the season and maybe even in an Astros' uniform come September. However, the 21-year-old Singleton was banned 50 minor league games after testing positive for marijuana use this offseason.

The former Hooks' slugger says this spring training has been different knowing he'll have to sit, but it's a mistake he's trying to put behind him.

"You definitely have to stay positive, that's been my biggest key this whole time," Singleton said. "Just stay positive and come to the ballpark with a smile on your face."

"He's got a tremendous attitude and acknowledges where he needs to make adjustments in his approach to life, like we all do," Hooks Manager Keith Bodie said. "We all make mistakes. This should be the worst thing that ever happens to us. Baseball wise, he's ready to go now, and I believe he's going to continue to stay in shape, and be ready to go when the bell rings."

Astros' management says they've been behind Singleton since the test, and that it's up to him to rectify that mistake and come back not as a better player, but rather, a better person.

"You know this is a learning experience for a young man, and we all have opportunities to learn lessons in life and this is just one for him," Bodie said.

Singleton reflected back on his 2012 season in Corpus Christi, where he belted 21 homers for the Hooks. The California native said the fans at Whataburger Field helped him feel right at home, as did the off-day trips to the beach.

"Corpus is a great place actually. Corpus is not too far from where I'm from in Long Beach, California, so it's definitely a place I like."

Jon Singleton is hoping he can learn from his mistakes and put his upcoming 50 game suspension behind him, and once again make Hooks fans proud of him. Reporting from Astros' and Hooks' Spring Training in Kissimmee, Florida, Chris Thomasson, 3Sports.