Bill Guthridge, who led North Carolina to two Final Four appearances in his three seasons as coach of the Tar Heels, will announce his retirement at a news conference Friday, The Associated Press has learned.

A source close to the basketball program, speaking on condition of anonymity, said Thursday that Guthridge recently decided he did not have the energy to continue coaching the Tar Heels.

Guthridge, 62, said just a few weeks ago that he planned to stay on another five or six years.

An assistant to Dean Smith for 30 seasons, Guthridge replaced his former boss, the winningest coach in college basketball history, when he retired in 1997 after 36 years as coach of the Tar Heels.