The Rockies have placed lefty Jorge De La Rosa and righty Jason Hammel on the 15-day disabled list. De La Rosa has a torn tendon in his left middle finger which will cause him to miss a while. This will hurt the Rockies as De La Rosa has been one of the better starting pitchers for the Rockies the last couple of years. He has started 4 games for the Rockies this season and he is 3-1 with a 3.91 ERA and a 1.44 WHIP. He has whiffed 26 batters in 23 innings showing just how good his stuff has been this season. Hammel has a strained right groin. He has started 4 games for the Rockies so far this season and he is 0-2 with a 9.16 ERA and a 1.92 WHIP. Hammel hasn’t missed many bats so far this season as he has allowed 28 hits in only 18 2/3 innings so far this season for the Rockies. The Rockies have called up 22-year old righty starting pitcher Jhoulys Chacin and righty reliever Juan Rincon to replace De La Rosa and Hammel on the pitching staff. Chacin was the Rockies’ #4 rated prospect coming into this season according to Baseball America. He will join the starting rotation. He started 4 games in AAA-ball for the Rockies this year and he was 3-0 with a 1.69 ERA and a 1.22 WHIP. He has only given up 15 hits in 21 1/3 innings while whiffing 21 batters in AAA this year which shows how nasty he can be. He has already pitched 1 inning of scoreless relief for the Rockies whiffing 2 batters. Juan Rincon was the stopper at AAA this season. He pitched in 8 games (0 starts) in AAA-ball this season and he was 0-1 with 5 saves, a 4.91 ERA and a 1.64 WHIP. He also has pitched in a game already for the Rockies this season working 1 inning in which he gave up 2 hits, 1 walk and 1 earned run. I think Chacin will do a good job for the Rockies but they need De La Rosa in particular to get healthy soon.