Cole Hamels is working on developing a sinker this spring, something he began practicing last season. "A few games, I would throw it, but it would get hit, and I would say, 'Forget this,' " said Hamels, who is scheduled to make his Grapefruit League debut tomorrow against Toronto. "But it's still something I'm throwing in the bullpen and am working with." Hamels and pitching coach Rich Dubee said they did not recall exactly when or how often Hamels threw the sinker in 2009. "If you're trying to pin me down to specific dates, I don't remember, but he threw it more than you might think," Dubee said. "It could be a good pitch for him." "I only remember him throwing the sinker maybe two, three times last year," said catcher Carlos Ruiz.