Pau Gasol experienced soreness in his injured right foot Saturday after participating in a workout at the Lakers training facility, according to a Lakers spokesman.
He will be examined Sunday by Dr. Kenneth Jung, a foot specialist, and a further update will be given later in the day before the Lakers play the Sacramento Kings at Staples Center.
Gasol, who has been out with a torn plantar fascia in his foot since Feb. 5, had been hoping to return at some point this week, possibly as soon as Sunday.
Kobe Bryant, who played only 12 scoreless minutes on a badly sprained ankle Friday night in Indiana, received treatment on his ankle Saturday and is listed by the Lakers as doubtful for Sunday's game against the Kings.
Bryant initially injured his ankle on the final play of a loss to the Hawks on Wednesday night. He spent two days trying to fight his way back after landing on the foot of Atlanta's Dahntay Jones.
Bryant also tweeted Saturday night that he has the flu.