The 26-year-old recently claimed Liverpool are the only club he would return to the Premier League for and Rodgers believes the Merseyside club's fans are a big reason for that.
"I think he certainly misses the passion of the Liverpool supporters and he loved the competition of the Premier League," Rodgers told talkSPORT.
"Luis is enjoying it out there at Barcelona, but I think if he did ever come back, there would certainly be only one club he'd want to play for.
"He absolutely loved it at Liverpool, the supporters adored him and he gave absolutely everything.
"Barcelona was an incredible move for Luis, and it's such a great credit to him that his move made an already world-class team even better.
"It's a joy to watch him score goals and work as hard as he does for one of the best teams in the world... but you never know."