Jun 19, 2007 1:31 AM EST

Jason Giambi has until Thursday to agree to a meeting with steroids investigator George Mitchell or else face possible discipline from Bud Selig.

Lawyers from the players' union and MLB resumed talks Monday after a weekend break to set rules for a Giambi-Mitchell meeting. The deadline is only for an agreement to meet, not for the actual session to take place.

Via AP