Kobe Bryant is back in court again -- this time, without the NBA championships taking some of his attention. The basketball star has returned to a Colorado courtroom for a pretrial hearing in his sexual assault case. The two-day hearing is expected to focus on the burden of proof. Defense lawyers want the judge to tell jurors they must acquit Bryant of raping a hotel worker if they determine she consented to sex -- as Bryant has maintained. They say prosecutors have to prove beyond a reasonable doubt that the woman didn't consent -- and that Bryant knew it. Prosecutors say they only have to prove that the sex was against the woman's will. The judge may also set a trial date. Last week, Bryant's LA Lakers lost the NBA finals to the Detroit Pistons.