Well I've been watching more matches where he was and man he was so bad at his positioning and defending knowledge overall. He had a good response to anticipate but what he basically always did when the ball came to him was just threw it nowhere. He had no shame in doing that ALL the time, even when he had the space, time and the chance to take it down and give a simple pass. No, he just threw it nowhere lol. He seemed a 60's cb playing in bad pitches, thing wasn't true in 1999.
He was a monster in the air really, great leap and accuracy and like i said he relied in this and in his anticipations. Otherwise he couldn't grow at his career since his defensive knowledge was really poor to a NT player or a Libertadores' champion.
Aside that i guess he was useful cause he scored throught headers and his great shoting abilities. Strange player and way worse than Roque Junior but they complemented each other well.