Yeah, sue.

it is better to have a player sign on the sweet spot, one per ball as the
previous poster said.

I have a Bart Giamatti Ball signed by Pete Rose on the sweet spot, but I
made the mistake of adding Rose Jr. to the ball. It's a nice item, but Rose
Jr., drops the value of this ball signicantally. The ball with Rose alone is
in the $60 range.