Miami Dolphins RB Jay Ajayi (knee) is out of practice Monday, Aug. 1. It’s not known if it’s a day-to-day thing or in any way symptomatic of the knee injury that caused his draft stock to fall a year ago. Ajayi has maintained that his knee is a ‘non-issue,’ according to his doctors. Some have speculated his knee is bone-on-bone, which could shorten his career.