Federer tired after long start to season

After losing just his third singles match of the season to Andy Roddick in Miami last night, Roger Federer says he’s feeling tired. "(I've played) maybe 30 matches for the season. Just feeling like it's taken its toll a bit, which is normal," Federer said. 
"But I've played more tired in the past, so this was not the most tired I have ever been, but you just start to feel it a bit. I didn't just get the lucky break today that I got in Indian Wells."