sentences:  Over the course of the season, he started eight games and played in four more en route to a 4–6 record and a 5.16 ERA.In the middle of July, Dr. Philip Kruescher discovered that Grove had torn cartilage in his left knee, a result of the same injury which caused him problems for most of the season and the previous off-season.Grove was scheduled for knee surgery, which necessitated two months of recovery, effectively ending his season.