Andy Roddick’s longtime trainer Doug Spreen tells Cincinnati.com that the former No. 1 has to focus on hydration and nutrition because "he has a high sweat rate—it is just dripping off him….Everyone is different. You watch Roger Federer play and he might leave the court with just a bead of sweat on his face or a little spot on his shirt. Or (former pro) Wayne Ferreira, it didn't matter where he was, he would never sweat. Then there is Andy, who makes a puddle under him when he sits down."