Joe Kelly has been diagnosed with a left hamstring strain and is headed back to St. Louis for further tests.
Joe Kelly left Wednesday's game against the Brewers with a left hamstring injury.
Joe Kelly allowed an unearned run over six-plus innings against the Cubs on Friday.
Joe Kelly limited the Pirates to one run over 5 1/3 innings Saturday in a Cardinals victory.
Cardinals manager Mike Matheny announced Sunday that Joe Kelly will be the team's fifth starter to begin the season.
Joe Kelly yielded two runs and two hits in five-plus innings Sunday in a victory over the Astros.
Joe Kelly allowed one run over 5 1/3 innings and went 3-for-3 with two RBI at the plate as the Cardinals topped the Braves 6-2 on Saturday.
Joe Kelly yielded five runs and seven hits in 2 1/3 innings Sunday against the Nationals.
Joe Kelly surrendered two runs in 1 2/3 innings Monday against the Tigers.
Joe Kelly allowed two runs over 5 1/3 innings, taking a no-decision in the Cardinals' win over the Red Sox in Saturday's Game 3.
Joe Kelly will start Game 3 of the World Series against the Red Sox on Saturday.
Joe Kelly allowed four runs on seven hits, including two home runs, over five innings in a loss to the Dodgers on Wednesday.
Joe Kelly yielded two runs over six innings Friday in a no-decision in Game 1 of the NLCS against the Dodgers.
Joe Kelly will start for the Cardinals in NLCS Game 1 on Friday night against the Dodgers.