WASHINGTON (AP) -- Former major leaguer Chuck Knoblauch agreed today to talk to a House committee investigating drug use in baseball, and the session was postponed until later this week.

The committee issued a subpoena for Knoblauch last week after he failed to respond to an invitation to testify. Knoblauch originally was to give a deposition January 24th, but that session was postponed until tomorrow. Under the new schedule, Knoblauch will give a deposition or transcribed interview on Friday.

The appearance is in preparation for a February 13th hearing, which is to include Knoblauch, Roger Clemens and Andy Pettitte. Also scheduled to testify are Brian McNamee, the former personal trainer for Clemens and Pettitte, and former Mets clubhouse attendant Kirk Radomski.

Pettitte is slated to appear for a deposition or transcribed interview on Wednesday. Clemens will follow on February 5th with McNamee getting his turn two days later.