After the throw, Jones landed awkwardly and was on the ground for a few minutes. He eventually limped off the field with help from Braves trainers and was replaced by Brooks Conrad. Jones, who tore his ACL in 1994, said he didn't think he tore it again.
"I don't think it's my ACL because when I did it before it sounded like my knee exploded," Jones said. "While I did hear a pop, it wasn't the same pop."
Jones will get an MRI in Atlanta on Thursday to see what the exact diagnosis will be. Jones said he received all of the ACL tests after the injury.
"I have a lot of pain in the left side of my knee," Jones said. "I don't know what that means. Hopefully it's just a sprain."
Jones added that his knee isn't swelling as much as it did when he tore it the first time and he doesn't have as much fluid as he did then either.
Jones had entered Tuesday's game on a tear, hitting .361 over his past 10 games. Manager Bobby Cox said losing Jones for an extended period of time would be tough.
"I hate to see it because he's playing so good right now," Cox said. "It's about as good as I've seen him swing the bat in two years."