 By 1973, he was out of the starting lineup due to injuries, prolonged batting slumps and the emergence of Al Bumbry and Rich Coggins.Rettenmund, along with Junior Kennedy and Bill Wood, was sent to the Cincinnati Reds for Ross Grimsley and Wally Williams on December 4, 1973.In 13 seasons, he played in 1,023 Games and had 2,555 At Bats, 393 Runs, 693 Hits, 114 Doubles, 16 Triples, 66 Home Runs, 329 RBI, 68 Stolen Bases, 445 Walks, .271 Batting Average, .381 On-base percentage, .406 Slugging Percentage, 1,037 Total Bases, 36 Sacrifice Hits, 20 Sacrifice Flies and 15 Intentional Walks.