Roberto would than later be shipped to St. Louis partly through the 1971-1972 season, where he'd score a total of 77 points (33 goals, 44 assists) in 148 games wearing the Blues note.
He'd later join the Detroit Red Wings during the 1974-75 season, and would score a total of 48 points (14 goals, 34 assists) in 83 games wearing the winged wheel.
Roberto would later understand the journeyman experience in the NHL as he'd join three different teams in 1975-76 to 77, joining such teams as the Colorado Rockies, Kansas City Scouts, and Cleveland Barons.
His NHL career totals are 385 games played, 181 points (75 goals, 106 assists), and one Stanley Cup with the Montreal Canadiens.