Autographed Baseball

Dantes

We have this autographed baseball (see icon). It was a homerun in the year 2000 in Chicago (White Sox or Cubs) between march and july. It could have been also from one of the away teams and that makes it even more complicated . Can anyone help and tell us whose signature it is. Thank you!

Hydrant

Nope.

burghman

Looks like Andy, but then again it could be Robert.