ST. LOUIS -- Two of the heavyweights of the National League meet on Sunday Night Baseball, when the Los Angeles Dodgers visit the St. Louis Cardinals, but neither team is working at full strength -- far from it. The Dodgers pitching rotation is in tatters, and the Cardinals infield looks nothing like it did a month ago.Its all about surviving for both teams, which remain squarely in the playoff hunt, until they get some of their key players back. Lets do a comparison and decide who is hurting more at each position group. Dont miss your chance to vote on each teams injury situation below.RotationLos Angeles Dodgers: Injuries have the Dodgers down to four active starters, but they are hanging in there since Clayton Kershaws back injury nearly a month ago. Brandon McCarthy has been solid since he came off the DL, and Kenta Maeda has been steady all year. But surviving much longer without Kershaw will be tough. Dodgers starters entered this series in St. Louis with a .246 opponents batting average, third in the NL, since Kershaw most recently appeared in a game.St. Louis Cardinals: Some Cardinals fans have taken to calling it the Immaculate Rotation. It will be no more on Sunday. The Cardinals had to scramble for a spot starter when their Tuesday night game with the San Diego Padres was rained out, forcing a Wednesday doubleheader. They came up with reliever Tyler Lyons, who will be just the sixth pitcher to start a game for the Cardinals this season. The Cardinals were the last team to have used just five starters this season. The Chicago Cubs shared the distinction until they tapped Adam Warren on July 6.The Cardinals lost starter Lance Lynn to Tommy John surgery in the offseason, but they had time to react and added free-agent right-hander Mike Leake on a five-year, $80 million deal. Otherwise, they have avoided any injuries to their rotation, which has improved as the season has gone on.BullpenDodgers: The latest setup man behind closer Kenley Jansen is lefty Adam Liberatore. It might seem that this group cant get its bearings, but the Dodgers bullpen is a strength of the team and one of the biggest reasons the club has been able to stay afloat without Kershaw. Liberatore has recorded 28 consecutive scoreless appearances, and as of Friday, the Dodgers 2.99 bullpen ERA was second in baseball.Cardinals: The Cardinals thought they would have both Jordan Walden and Mitch Harris available to them this spring, but neither has thrown a pitch this season. Harris underwent elbow surgery, and Walden remains sidelined with a shoulder injury that could end his career. Otherwise, the Cardinals bullpen has been relatively stout. Kevin Siegrist missed time over the All-Star break because of mononucleosis, but he is back and pitching as well as any Cardinals reliever.InfieldDodgers: Rookie shortstop Corey Seager has carried the Dodgers offensively as if he were a veteran, and he is playing better-than-expected defense as well. Third baseman Justin Turner started slowly after offseason knee surgery but has been a monster lately. Heading into play Friday, his 13 home runs since June 10 led the NL, as did his 35 RBIs. Second baseman Chase Utley has turned back the clock with steady play at second base and has been the Dodgers primary leadoff man, a spot he did not occupy regularly until this season. First baseman Adrian Gonzalez has traded spurts of key production with some deep slumps.Cardinals: The Cardinals infield has been in constant flux this season. Part of that is due to the meteoric rise of All-Star shortstop Aledmys Diaz, whose arrival forced position switches for Jhonny Peralta and Matt Carpenter. But lately it has been due to injuries. Carpenter (oblique strain), who might be the most underrated player in the game, and starting third baseman Peralta (left thumb strain) arent expected back for weeks,