The NLDS did not go well for the Dodgers, and that was partly due to a pair of injuries.
Grandal was the best offensive catcher in baseball in the first half (non-Buster Posey edition) and was named to his first all star team, but dealt with lingering shoulder issues down the stretch. Grandal had 10 hits in 58 August at bats and went 3-51 in September/October. He ended the season going 1-10 in the postseason with six strikeouts, starting in three of the five games over A.J. Ellis.
Turner was also dealing with lingering injuries during the second half and had a scary infection that caused him to miss a couple weeks. He returned and then left a September game with knee issues, but battled through them and was extremely productive in the NLDS. He went 10-19 against his former team in the NLDS and had one of the three Dodger stolen bases in the series.
Both surgeries will reportedly be performed by team physician Dr. Neal ElAttrache. As the tweets said, both players are expected to be ready for Spring Training. Grandal has two capable backups in Ellis and Austin Barnes, but there isn’t really a logical in-house backup at third. Corey Seager could probably play over there in a pinch, and Alex Guerrero could maybe stand there and play a little defense, but it wouldn’t be surprising if he wasn’t on the team next year.