Celtics center Shaquille O'Neal announced on Twitter Wednesday that he was retiring from the NBA after 19 seasons in the league. O'Neal retires as the NBA's fifth-leading scorer all time, just ahead of former teammate Kobe Bryant. He also retires with four NBA championship rings, three with the Lakers and one with the Miami Heat. He spent one season with the Celtics. Scroll through the gallery to see the 39-year-old, 7-foot center's career highlights.
Globe Staff Photo / Barry Chin