Takashi Saito (calf) tossed a second straight perfect inning at an Arizona League game Sunday. Saito's next scheduled appearance will come Thursday. He's been out all season with a right calf strain and a respiratory illness but finally appears to be close to joining the Diamondbacks' bullpen. "We've just got to get him on a streak of good," said manager Kirk Gibson. "He threw more aggressive [Sunday], throwing more of his secondary pitches as well as his fastball. He's turning the corner."