A club source said that Carpenter experienced some soreness coming out of his last start, in Game 3 of the National League Championship Series against Milwaukee on Wednesday, but that "all is well now." General manager John Mozeliak referred to the soreness as a "non-issue" when reached by MLB.com on Monday afternoon.
According to another club source, the discomfort was located in the area of Carpenter's triceps muscle.
Carpenter has not officially been announced as the Cardinals' Game 1 starter, but he would certainly be the choice, assuming his health. He was the scheduled starter for Game 7 of the NLCS, had that game been necessary. Instead, the Cards finished the series in six games, allowing extra rest time for the former Cy Young winner.
Carpenter, 36, has made three starts this postseason. He pitched Game 2 of the NLDS against the Phillies on three days' rest and struggled, lasting three innings, before returning to throw a shutout in the Cardinals' Game 5 clincher. In Game 3 of the NLCS, he allowed three runs in five innings.
Matthew Leach is a reporter for MLB.com. Read his blog, Obviously, You're Not a Golfer and follow him on Twitter at @MatthewHLeach. This story was not subject to the approval of Major League Baseball or its clubs.