Charlie Sheen's day is about to get worse.

When the Two and a Half Men star is sentenced Monday in Aspen, Colorado for allegedly threatening his estranged wife Brooke Mueller, famed Los Angeles based attorney Gloria Allred will be outside the courthouse, holding a news conference with a mystery client, RadarOnline.com has learned.

Allred sent RadarOnline.com this email confirming that she will be there: "Yes. I am in Aspen. Yes, I will have a press conference outside the courthouse after the sentencing today with my client who would have been a witness in the case. I am not providing my client's name at this time, but will provide the name at the news conference."

• TAGS

• Aspen
• Brooke Mueller
• Celebrity Justice
• Charlie Sheen
• court
• Developing Story
• Gloria Allred
• No Contest
• press conference
• sentencing
• Stephanie Desario