The Rockies have placed 27-year old switch-hitter Jonathan Herrera and 26-year old righty swinging Chris Nelson on the 15-day D.L. retroactive to July 16th. Herrera has an infection in his right wrist and Nelson has an irregular heartbeat. Herrera has played in 45 games for the Rockies so far this year and he is 30 for 122 (.246 avg, .678 OPS) with 20 runs scored, 3 homers, 6 RBIs and 2 stolen bases. Nelson has played in 58 games for the Rockies so far this year and he is 43 of 168 (.256 avg, .735 OPS) with 18 runs scored, 5 homers, 23 RBIs and 1 stolen base. The Rockies have called up 24-year old righty swinging infielder D.J. LaMahieu and 27-year old righty swinging 1B/OF Andrew Brown to replace Nelson and Herrera on the active roster. LeMahieu played in 19 games earlier this year for the Rockies and he was 8 for 39 (.205 avg, .493 OPS) with 3 runs scored, 0 homers, 2 RBIs and 1 stolen base. Andrew Brown has played in 86 games in AAA-ball for the Rockies this year and he was 106 of 334 (.317 avg, .977 OPS) with 70 runs scored, 20 homers, 84 RBIs and 2 stolen bases. Brown got his first action in the majors last year with the Cardinals. Brown played in 11 games for the Cardinals last year and he was 4 for 22 (.182 avg, .409 OPS) with 1 run scored, 0 homers and 3 RBIs.