He played eight seasons in the National Hockey League (NHL) with the New York Rangers, Philadelphia Flyers, and Los Angeles Kings from 1964 to 1972.
He went on to play three seasons in the World Hockey Association (WHA) with the Minnesota Fighting Saints and Indianapolis Racers from 1972 to 1975.
[1] His strongest offensive performance came almost one year later on November 19, 1970, when he scored another hat-trick and had an assist against the California Golden Seals.
[7] During his final NHL season in 1971–72, Johnson scored 21 goals in 74 games for the Flyers and Kings, both numbers representing career bests.
[8] He played three seasons with the Saints, with his best year coming in 1973–74 when he recorded 54 points (including 39 assists) in 71 games.