Los Angeles (CNN) -- Dr. Conrad Murray's lawyers began presenting the defense case Monday, calling a doctor who testified that Jackson asked him for an intravenous anesthetic to help him sleep two months before his death. A nurse, who began her testimony late Monday, is expected to testify Tuesday that Jackson asked her, also two months before he died, for IV infusions of the surgical anesthetic propofol. The prosecution rested its case in the involuntary manslaughter trial of Michael Jackson's doctor Monday morning with the conclusion of testimony by its anesthesiology expert. Defense lawyers will use the next three or four days to challenge the prosecution's contention that Dr. Conrad Murray's alleged reckless use of propofol to help Jackson sleep makes him criminally responsible for the pop icon's death.

"I've got to sleep, Dr.

OPTIONS:
- Allan Metzger," Murray said Jackson pleaded to him.
- CNN," Murray said Jackson pleaded to him.
- CNN Jackson," Murray said Jackson pleaded to him.
- Cherilyn Lee," Murray said Jackson pleaded to him.
- Conrad Murray," Murray said Jackson pleaded to him.
- IV infusions," Murray said Jackson pleaded to him.
- Jackson," Murray said Jackson pleaded to him.
- Katherine Jackson," Murray said Jackson pleaded to him.
- Los Angeles," Murray said Jackson pleaded to him.
- Michael Jackson," Murray said Jackson pleaded to him.


Conrad Murray," Murray said Jackson pleaded to him.