"The Chicago Cubs and Atlanta Braves are working on a deal to send first baseman Derrek Lee to Atlanta for prospects, according to a league source.

Lee, who is presently dealing with a bulging disc on his lower left side, received an epidural on Monday to relieve the pain and will not be ready to play again until Thursday.

According to a Cubs official, Lee refused to speak to the media before Wednesday's afternoon game against the Padres.

Braves top scout Jim Fregosi watched Lee hit four home runs during a series in St. Louis over the weekend. Fregosi reported back to general manager Frank Wren that Lee was swinging the bat as well as he has all season, according to a source.

Atlanta lost All-Star third baseman Chipper Jones for the season with a knee injury on Aug. 10. First baseman Troy Glaus, a former third baseman, could be moved back to third if Lee is acquired."