Holliday placed on DL By Sports Network

Cardinals batter Matt Holliday watches his solo home run against the Cubs in Chicago, Illi., May 12, 2011. (FRANK POLICH/Reuters)

ST. LOUIS - The St. Louis Cardinals have placed both outfielder Matt Holliday and pitcher Kyle McClellan on the 15-day disabled list Thursday.

Holliday, who is hitting .342 with six home runs and 31 RBI, has not played much during the Cardinals' last six games because of a quadriceps injury and the move is retroactive to June 1.

McClellan's move is back-dated to May 31 with a left hip strain. He is 6-2 with a 3.86 earned run average in 11 games (10 starts) this season.

In corresponding moves, the Cardinals have promoted their top two pitching prospects, Lance Lynn and Maikel Cleto. Lynn's contract was purchased from Triple-A Memphis while Cleto has been recalled form Double-A Springfield.

Lynn, 24, will take the mound in his major-league debut Thursday against San Francisco, pushing the St. Louis rotation back a day. The right-hander is 5-3 with a 4.06 ERA in 10 starts with Memphis this season.

Cleto has gone a combined 2-2 with a 2.55 ERA at Single-A Palm Beach and Double-A Springfield.