The St. Louis Cardinals' Brendan Ryan dives for a ball in this file photo. He was placed on the 15-day disabled list on Thursday.The St. Louis Cardinals' Brendan Ryan dives for a ball in this file photo. He was placed on the 15-day disabled list on Thursday. (Ross D. Franklin/Associated Press)

The St. Louis Cardinals have placed infielder Brendan Ryan on the 15-day disabled list with a strained left hamstring.

The Cardinals also recalled infielder Tyler Greene from Triple-A Memphis before their game against the Washington Nationals on Thursday night. Greene was in the lineup at shortstop for his major-league debut.

Ryan hurt himself running out a foul ball in the fifth inning in Atlanta on Sunday. He was hitting .250 with three RBIs in 19 games.

Greene was hitting .296 with two home runs and nine RBIs for Memphis.