I think I remember that game. Was it the one where the Spurs beat the Bulls at home that year when Robinson blocked MJ at the rim two or three times? If it was, I remember Robinson having to step up because Elliott got fooled by MJ's pumpfakes about 28 times in a row.
Anyways, yeah Sidney Green was pretty damn bad. I remember Larry Brown was REALLY high on him after the trade. He even said Green was one of the best rebounders in the league and that Green's ability to defend the post would free Robinson up to block more shots. I remember questioning the trade as a 10-year-old because Green was a joke before he had that decent season with the horrible Magic team the previous season.
For most of his time with the Spurs, Green remained fat and to make it worse he was painfully soft and slow. He rebounded decently but was otherwise pretty damn bad at defense. He couldn't block a shot to save his life and he got bullied by any halfway skilled big. On offense, he loved his mid-range jumper ... but he seemed to always miss it if there was any type of pressure. I remember Larry Brown begging him to post up but that rarely happened.
He had a few stretches where he played like a poor man's Kurt Thomas for a few weeks here and there but was mostly a huge disappointment ... especially with how hyped up LB made him coming from Orlando.
Oh yeah, the best Sidney Green story was when he tried to steal Antoine Carr's wife. The two were fishing buddies until Sidney went out of bounds.