Leon appeared in 12 games for the Braves for his first taste of the Big Leagues in 1973. Putting together a record of 2-2 with an earned run average of 5.33 over exactly 27 innings pitched.
He’d go on to be a arm out of the bullpen throughout his career, appearing in a career-high 50 games in 1975, saving as many as six games while averaging about 65 innings a year.
His final season of 1978 saw him appear in only five games while pitching to an ERA of 6.35 over 5.2 innings before retiring.
Overall he’d finish his career with a record of 14-18, with an ERA of 3.71 over 162 appearances and 310.1 innings of work, saving 13 games while starting 13 as well.