After two lost fumbles in the past three games, Detroit Lions running back Reggie Bush made a guarantee Wednesday.

He won't fumble again this season.

Bush, in his first year with the Lions, made the guarantee as part of an explanation as to why he has been fumbling more lately.

"Just not thinking enough. Not protecting the ball. Not being aware enough of my surroundings, protecting the ball," Bush said. "Actually, the last game, when I fumbled, I was protecting it as I was going down, I just didn't squeeze it tight enough. That just comes with me mentally, constantly reminding myself, all week throughout practice, of making sure I'm high and tight -- whether I'm going through the hole or whether it's after practice [and] I'm doing a couple extra drills. Just little things like that.

"Those are the things that will help me to make sure that doesn't happen again. And it won't happen again."

Bush has three fumbles this season -- two of them lost. He has never had more than two lost fumbles or more than four fumbles total in a season.

So when asked to clarify whether he was actually making a guarantee, he responded affirmatively.

"Yeah, yeah, yeah," Bush said. "Yes."