Poythress attended
Greenbrier High School where he was a four-year varsity starter. As a junior, he
hit .544 with 13
home runs. He also played for the Savannah Chain summer team. Poythress attended the
University of Georgia where as a freshman he appeared in 45 games, 38 starts. He batted .282 with three home runs and 24
RBIs. He recovered from a torn
ACL before the season. Poythress played started 69 games with the Bulldogs in his sophomore season. He helped the team become the
Southeastern Conference champions and helped them in the
College World Series. He batted .374 with 15 home runs and 75 RBIs. He started all six College World Series games and hit .409 with three doubles and eight RBIs. Poythress set a school-record with 55 assists at first base and was named to the SEC All-Defensive Team. After the 2008 season, he played
collegiate summer baseball with the
Orleans Cardinals of the
Cape Cod Baseball League and was named a league all-star. In his junior season Poythress started all of the Bulldog's 62 games. His .376 average with 25 home runs and 86 RBIs were a team lead. During the season, he was named SEC player of the Week and a Louisville Slugger National Player of the Week after helping the Bulldogs to a sweep over the
University of Tennessee. ==Professional career==