Prior will be sent to extended spring training
Recovering from right Achilles tendinitis and a sore elbow, Prior has thrown about 85 pitches since Monday, including some curveballs off a flat surface Wednesday. He threw only 10 pitches in his first session last week.
Prior plans to throw some breaking balls off the mound during his next throwing session in a few days.
"It went all right," Prior said Wednesday. "I'm not as accurate as I'd like to be and I'm not hitting my spots, but I think it will come. It was only my third bullpen session (Wednesday). I'm not necessarily worried."
Prior, 23, was 18-6 with a 2.43 ERA last season in helping the Cubs reach the NL championship series. He finished third in Cy Young Award voting.
The right-hander will continue his bullpen sessions until heading to camp in Mesa, Ariz., next week. The Cubs aren't setting a definitive timetable for Prior's return, but mid-May has been mentioned.
Prior probably will go on a minor league rehabilitation assignment in early May.
"The end of next week, hopefully I'm throwing an inning or something, pitching to batters," he said. "I'm starting out slowly and working myself up, the way I would during spring training."
The Cubs are being cautious as they try to prevent a relapse that might further delay Prior's return. Last month, Prior said tests showed nothing but inflammation in the heel and right elbow.
Prior is encouraged that he now feels normal on the days after he throws.
"Even right now, I feel good," he said. "The first few times out, everything was aching, but now I'm starting to feel like I normally do when I throw my side (sessions)."
Prior also denied he has been in a bad mood while he waits to pitch again, saying the only problem has been the monotony.
"I've been positive for the most part," he said. "People say I've been moody, but when you get the same questions for 60 straight days, it gets old every once in a while."
Copyright 2004 by The Associated Press