Nix is considered to be one of the best bench players in baseball. Last year, he hit .291 with four home runs and 18 RBIs in 165 at-bats for the Reds.
Nix, a Houston native, didn't have a reaction when he was told on Friday that Houston had interest in his services.
"It doesn't mean anything until it happens," Nix said. "It doesn't change anything I do. I'm getting ready for a season. It's real simple for me, because I just have to do what I have to do to play baseball."
Entering Friday, Nix was 4-for-17 [.235] with two RBIs this spring.