Confusing Sportsmen

My gripe of the day is that it's unacceptable to have such similarly named tennis players as:

  Ferrero (Juan Carlos)
  Ferrer (David)
  Federer (Roger)
  Ferrero (Rocher)

They're all playing tonight in the Roma Open, and to make things worse, two of them are matched up. But I can't remember which. Also, it's possible that one them is a chocolate.

So confusing.