On Thursday, the Lakers reached an agreement with free-agent point guard Kendall Marshall, giving the team an option at the position (in addition to Xavier Henry, who will continue to play out of position at the one).
Nash is to be reevaluated in four weeks, but the veteran point guard may need significant practice time to be cleared to play.
Blake is a week into his scheduled six-week recovery, which would suggest that he'll also be out until the Pacers come to Staples Canter, given the Lakers' travel schedule.
Bryant is out for six weeks, which suggests a Jan. 31 return at Staples Center against the Charlotte Bobcats.
Nash is a wild card; his return time is unpredictable.