Steelers Practice Jersey Help

[sprint23]

I just purchased this jersey. The seller said that he won it in a charity auction. All the tagging seems correct for a 2001 Steelers practice jersey but there was no #43 on the roster in either 2001 or 2002. Polamalu joined the team in 2003. I like the jersey and believe I got it for a good price even if it's just to wear but am curious as to exactly what the history behind the jersey may be. Any thoughts are appreciated. Thanks.

[Phil316]

Strictly from the pictures the jersey to me shows no use. Is that correct or does it shoe some light use.

My thinking is it was a left over from 2001 as no player chose #43 to wear either in training camp, pre-season or regular season.