Cardinals outfielder Jordan Walker tweaked his knee while stepping on a sprinkler head and was forced out of game action and had imaging done on the knee. Luckily, it came back wi

St. Louis Cardinals outfielder Jordan Walker will be sidelined at least a week after suffering a minor knee injury – the result of his stepping on a sprinkler head while running down a fly ball during Tuesday's spring training game against the Washington Nationals .

After exiting Tuesday's Grapefruit League game early, Cardinals right fielder Jordan Walker will miss around a week with left knee inflammation, manager Oliver Marmol said.