ST. PETERSBURG, Fla. — Tampa Bay's Rocco Baldelli will begin the season on the disabled list because of a condition that the 26-year-old outfielder says leaves him extremely fatigued after short workouts.

Baldelli has been sidelined since last May because of lingering hamstring problems and has appeared in just 127 of 486 games the past three seasons because of an assortment of injuries. He has played in two games this spring, going 0 for 4 as a designated hitter.

Baldelli will be sidelined indefinitely, but said he is not retiring. He said there hasn't been an exact diagnosis but that doctors have told him he has "some type of metabolic and/or mitochondrial abnormalities."