I think someone tried to fake a LaDainian Tomlinson autograph, but his auto has never been anything like that with legible letters. That's what the last name appears to read as. Did you buy this off ebay or such years ago? Not sure he's ever signed like that. Here's LT's auto....
Its not even mine. My friend has a bunch of signed stuff and this was the most confusing one to me. I thought it was LT at first but yeah his signature is not like that