Mulder pitched well for Double-A Springfield, allowing five hits over five scoreless innings. Mulder threw 73 pitches, 56 for strikes.
The southpaw said that his arm felt good following the start and attributed his success to a new arm delivery and his ability to make better pitches. Mulder struck out three and did not allow a walk.
"I thought it was a real positive outing," said manager Tony La Russa. "He's just got to get sharp, you know, fine-tune what he's doing."
Clement, on the other hand, did not fare as well, but threw well early for Springfield. He allowed three runs on five hits over five innings.
Clement cruised through the first three innings and did not allow a hit, but ran into some trouble thereafter.
La Russa was not sure when either would rejoin the Cardinals, but Saturday's results gave the club a positive indication that they might be ready soon.
Lee Hurwitz is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.