Jemison, a linebacker and safety from McAdory High School, was injured last season in practice and could not play. He was moved from safety to linebacker in spring drills.
Savage, who is from Johnson High in Huntsville, was injured last preseason, too. He hurt his shoulder and could not play.
Thompson, who is a safety from St. Thomas Aquinas High in Fort Lauderdale, Fla., played briefly this past season.
Auburn coach Gene Chizik is on vacation and not available for comment. A university official told Inside the Auburn Tigers the coach would not have a comment on the matter and Auburn officials would not say what the players did to lose their spots on the team.
Thompson, 6-1, 200 pounds, was fighting for second team status on the depth chart in spring training. He played in every game last season as a true freshman with most of his action on special teams. He had one tackle in 2008.
The safety had a solid spring training performance. He was a second-team All-State player as a senior at St. Thomas Aquinas. He led his state championship team in tackles with 88, including 63 stops, while playing both safety and linebacker. He intercepted a pass, recovered a fumble and made 13 tackles for lost yardage.
He was ranked as the No. 23 safety prospect in the nation by Scout.com.
Jemison, 6-2, 200 pounds, suffered a serious leg injury in a 2008 preseason practice and was redshirted. He made the move from safety to outside linebacker during spring drills this year and had a solid spring, Chizik said. He was a third or fourth stringer at safety before making the move to linebacker, a position where the Tigers are looking for more depth.
Jemison was a Class 5A All-State selection as a senior in high school. He played quarterback directing a Wing-T offense and also played cornerback and safety. Jemison returned three punts for touchdowns.
For his high school career Jemison completed 130-264 passes for 2,139 yards and 22 touchdowns. He rushed for 824 yards and 18 scores. He made 111 career tackles and intercepted 11 passes.
Savage, 6-2, 287, moved inside from end to tackle this spring. He was working his way into the playing rotation last August, but a shoulder injury required surgery and shut him down for the year.
In spring training Savage tried to get into the playing rotation at defensive tackle and was projected to be a third stringer this year.
As a senior at J.O. Johnson High he made 75 tackles with 10 sacks while splitting time at linebacker and end. He was named the Huntsville Metro Defensive Player of the Year and was a first team Class 5A All-State pick. He helped his team reach the state playoff quarter-finals.