From ESPN.com
St. Louis Cardinals: The Cardinals activated outfielder Larry Walker from the 15-day disabled list Saturday.
Walker, hitting .271, batted second and played right field against the San Francisco Giants. He was placed on the disabled list July 26 with a herniated disc in his neck. He needs one RBI to reach 1,300 in his career.
The Cardinals optioned catcher Mike Mahoney to Triple-A Memphis.