The weight on Lance Lynn's shoulders just got heavier. With starting pitchers Michael Wacha and Jaime Garcia going on the disabled list with shoulder injuries, Lynn's efforts will be magnified as the St. Louis Cardinals try to weather the storm and stay in the race in the NL Central. The Cardinals, who split a four-game series against the Phillies over the weekend, will begin a three-game set at Colorado Monday night. It also marks the start of a 10-game road trip. Lynn is 1-3 over his last four starts. He tossed six innings in a 3-2 home loss to the Mets on Wednesday. The right-hander has not yielded more than two runs in each of his last three starts. He has a 1-0 record with a 1.96 ERA in three career starts against Colorado. The Rockies counter with Jhoulys Chacin, who has faced the Cardinals three times in his career. He's 0-2 with a 6.43 ERA versus St. Louis. Chacin has just one win in nine starts this season, but that came in his last home start June 12 versus Atlanta when he limited the Braves to a pair of hits over seven shutout innings.