The St. Louis Cardinals have shut down Jordan Walker for at least one week due to inflammation in his left knee, an injury he reportedly suffered Tuesday after stepping on a sprinkler head while tracking a fly ball.

St. Louis Cardinals outfielder Jordan Walker will miss at least a week after suffering a minor knee injury when he stepped on a sprinkler head in a spring training game on Tuesday.

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.