• The Kansas City Royals have claimed Maikel Cleto off waivers from Triple-A Memphis. The Cardinals acquired the 24-year-old right-hander in 2010 in a trade with the Mariners. He made one appearance in St. Louis this season, surrendering five earned runs on five hits (one homer) and one walk in 2 1/3 innings against the D-backs.
• Edward Mujica is 21-for-21 in save opportunities this season, which is the best start to a season for a Cardinals closer since Tom Henke went perfect in his first 22 save opportunities in 1995.
Chad Thornburg is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.