Carlos Zambrano is ready to make his return to the mound for the Cubs on Friday against the Padres. Zambrano allowed four runs on five hits for Class A Daytona on Sunday, but his strained hamstring gave him no problems. "I feel 100 percent," Zambrano said. "I just had a little problem with my release point. But this week, before my next outing, we'll correct it." Cubs manager Lou Piniella said that he will speak with Zambrano this week to see if a Friday return is possible.