The Cardinals released Clement from their Triple-A Memphis club after signing him in the offseason. Clement was 1-0 with a 4.61 ERA in 12 relief appearances in Memphis.
"With the factor of having to option [Randy] Flores and option [Kelvin] Jimenez, we just really started to run out of spots and it became a numbers game," general manager John Mozeliak said. "Ultimately, we felt it was time to cut our ties with him. I can tell you he worked very hard to get to where he was and it is disappointing that it didn't work out."
Clement started the season on the disabled list and it never clicked for him with the Cardinals. The move opens a spot on the 40-man roster, but Mozeliak did not say who might fill it.
Mozeliak spoke with Clement's agent on Friday night and is confident he will reappear with another club, possibly making an appearance in the Majors some time in the future.
"At the end of the day, we didn't feel he was going to be able to contribute to our Major League team," Mozeliak said. "We really didn't feel comfortable with having him on.
Clement last pitched in the Majors in 2006 with the Boston Red Sox. He was named to the All-Star team in 2005, but began to suffer arm troubles a year later and he has not been the same pitcher since.
"He's had a tough go, there's no doubt about it. Getting to know him a little over the spring, really a nice young man and I wish him the best. But as we all know, we have tough decisions to make in this game and this is one we felt like we had to address."
Lee Hurwitz is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.