Wade may be only 31 years old, but his body is essentially 40. This is a guy who has battled persistent, nagging knee injuries over the past couple of years; knee injuries that have become so problematic that he actually had to move his kneecap into place during the 2013 playoffs.
Clearly, the Heat have concerns about Wade's future. His knee issues will obviously affect essentially every aspect of his game, meaning that he may have to make some adjustments. It appears that Wade knows that as well as anybody, considering that he has been working with Michael Jordan's former trainer, Tim Grover.
Hopefully for D-Wade, he can reinvent himself to try and quell some of these biggest potential issues.