Belgium international striker Benteke has been linked with a move away from Villa Park in the summer transfer window.
Delph hopes that the former Genk star remains at Villa Park, but admits that he will not try to convince his teammate if he has made up his mind.
“He is world class and it would be a big loss but I won’t try to convince anybody to stay,” the 25-year-old England international midfielder told The Sun.
“Everyone is entitled to make their own decisions. If they have a chance to move on and better themselves — I can’t tell them not to do that.”
Benteke is one of the best strikers in the Premier League, and he seems to have outgrown Villa, who narrowly avoided relegation to the Championship at the end of the recently concluded 2014-15 season.
It is understandable that the 24-year-old would want to play for a big team and have the chance to win major trophies.
The Belgium international struggled to make an impact for most of the 2014-15 season, but he came to life when Tim Sherwood replaced Paul Lambert as the Villa manager.
The former Standard Liege man scored 13 goals and created 33 chances in 29 Premier League appearances.
Benteke had a pass accuracy of 67% and a shot accuracy of 45%, and won 187 headers, 17 dribbles and seven tackles.