The original wife swap yankees pitchers fritz peterson and mike kekich trade wives. Two yankee pitchers swapping wives makes front page of the daily news on march 6, 1973. Peterson is probably best remembered today for swapping wives and children with fellow yankee pitcher mike kekich, an arrangement the pair announced at spring trainingin march 1973. The peterson and kekich families had been friends since 1969. Peterson and the former susanne kekich are still married, but the relationship between kekich and marilyn peterson did not last very long. One of baseballs biggest blockbuster trades was announced to the world 44 years ago this month at old fort lauderdale stadium and it involved more than just players. In 1973, two new york yankees pitchers, mike kekich and fritz peterson, completed the strangest trade in the history of baseball. Together they shocked the city when they announced they were both getting divorces and each would marry the others ex wife. It wasnt just a wife swap, either -- it was also a family swap down to the pets. The strangest trade in baseball history occurred on march 4, 1973, when new york yankees pitchers mike kekich and fritz peterson held separate news conferences during spring training. Like most baseball trades, the great yankee wife swap of 1973 had its winners and its losers. a spontaneous idea one evening in the summer of 1972 led to a very complicated family tree and a scandal that rocked major league baseball. New york yankee baseball players fritz peterson and mike kekich were finishing an evening at a party with their wives, when according to peterson in an article with the palm beach post, they decided to have the wives switch cars to drive to a diner. in 1973, two new york yankees pitchers, fritz peterson and mike kekich, made an off-the-field trade and swapped spouses and families.