Celtics News: Kemba Walker Misses Another Practice Due to Knee Soreness<br /><br />While the Celtics just had a four-mouth layoff due to the suspension of the NBA season, All-Star point guard Kemba Walker appears to still need time to get his body right and ready for game action. Lingering knee soreness has kept Walker from being a full-participant with the Celtics and has already seen him miss some practice time in Orlando.<br /><br />Coach Brad Stevens has insisted that the knee troubles are nothing to worry about and the Celtics will move Walker along slowly.