Sonic forward Rashard Lewis is suffering from plantar fasciitis in his left foot.

Plantar fasciitis kept Wally Szczerbiak out the first 3 1/2 months last season as he missed 44 games. The injury bothered Mateen Cleaves for half a season in Sacramento, getting so severe he couldn't walk without limping.

The injury originates where the plantar fascia -- a band of tissue much like a tendon -- attaches to the heel. It starts with microscopic tears, which leads to inflammation and then the tissue starts degenerating.