3. Who was that masked man? Francisco Elson -- protective facemask and all -- has looked more comfortable in this training camp than at any other point in his San Antonio tenure. At one workout last week, he was even seen coaching up some of the Spurs' youngsters. If he can find his way around on defense this year -- the way he couldn't last season -- the athletic Elson could contribute valuable minutes at center. Especially whenever the Spurs find themselves in a game that is decidedly up-tempo.