The Anger Management star's attorney Mark Gross appeared in court Tuesday morning asking the judge to modify the amount of child support Sheen is required to pay his ex-wife, with whom he has two children—4-year-old twins Bob and Max.
Mueller is currently in rehab and unable to parent the couple's children, who are currently under the care of Sheen's second ex-wife, Denise Richards, after being removed from Mueller's home by the Los Angeles County Department of Children and Family Services in May.
Sheen is currently paying $55,000 a month ($27,500 per child). A trial date has been set for Sept. 12.
Brooke was seeking treatment for prescription drug abuse at the Betty Ford Rehab Center in Rancho Mirage, Calif. (the same treatment center where Lindsay Lohan served the first portion of her lock-down rehab sentence) before reportedly transferring to a different facility in Orange County.
"Brooke misses her children and wants to get healthy so she can resume her life and get back to being a mom," her rep said when she entered rehab in May.