 Finding him expendable and in need of scoring, on August 29, 1974 the Rangers traded Sacharuk along with a number #1 draft pick to the St. Louis Blues for winger Greg Polis.With the Blues during the 1974–75 NHL season, Sacharuk proved himself as an offensive-minded defenceman and scored 20 goals and 22 assists over the course of 76 games.He ended the season as the fifth-highest goal scored on the team, and the 20 goals set a Blues single-season record for defencemen, which he held until tied by Jeff Brown in 1992; Brown surpassed the record the following season.