"Yesterday I was doing my running [up to] 85 percent, and I didn't feel anything at all," Soriano said Thursday. "I think I'm building something, because I'm feeling more and more power in my knee.
"I think the work I did in the winter is paying off. I started running, hitting and doing a lot of stuff, and I don't feel any pain at all."
Soriano said he hasn't tried to fully test the leg yet, but he will soon. He said Tuesday the knee was only 75 to 80 percent healthy.
"The only thing I'm doing 100 percent is fielding," he said. "I don't feel any pain at all.
"I think I need to trust it more. Before I felt my knee is good, now I need to trust it 100 percent."
Soriano said he hopes to play at least 150 games in 2010, according to ESPNChicago.com's Bruce Levine.
He has missed 125 games in the past three seasons, including 45 in 2009.