Two time world champion Jose Luis Castillo of Mexico was very saddened today after learning that Diego Corrales had passed away in a motorcyle accident."I was very surprised and upset when I heard about Chico. It really is tragic when something like this happens. My heart goes out to his family who I know he cared a lot about. I always liked Chico. We had what I would call as a friendly rivalry when we got into the ring. "We had two amazing fights and our names will be linked forever. For me it was a privilege of knowing Chico and being part of such great fights" Castillo is training in Mexico, getting set for his bout vs. Ricky Hatton at the Thomas and Mack Center, Las Vegas, on June 23.