Ellender was selected in the ninth round of the 1979 NFL draft by the Houston Oilers. Ellender was originally cut during the preseason but was re-signed by the team. When he joined the team, the coach told him, "I don't wan't you to fumble, and every yard you move the balltoward the goal line, that's one less yard Earl will have to get by himself." Ellender finished the season with one reception for 15 yards and was the Oilers' leading punt and kick returner. Ellender was cut at the end of training camp in 1980.