Beltran Leaves With Strained Knee, Is Day to Day Cardinals star Carlos Beltran left Game 3 of the NL championship series with a strained left knee, and there was an immediate impact: Replacement right fielder Matt Carpenter hit a two-run homer in his first at-bat. Beltran exited after grounding into a double play in the first inning and Carpenter took his place in the second. St. Louis says Beltran is day to day. Carpenter, in his first at-bat of the NLCS, followed Jon Jay's two-out single with a home run against San Francisco ace Matt Cain in the bottom of the third to put St. Louis ahead 2-1. Carpenter is 2 for 7 this postseason. The homer was his first extra-base hit. Game 4 is Thursday night. Beltran leads the Cardinals with a .400 postseason batting average. He has three home runs and six RBIs in the playoffs this year. Beltran leads all players with eight extra-base hits in the 2012 playoffs. He is a career .375 hitter in the postseason, highest ever among players with a minimum of 100 at-bats. It was not certain how Beltran got hurt. He appeared to move slowly down the line after grounding out.