Abney was born in Minot, North Dakota. He attended D.C. Everest High School in Schofield, Wisconsin, where he played wide receiver for the Evergreens high school football team. He led the Evergreens to a 14–0 record and a Division 1 state title his senior season. He caught 62 passes for 1,309 yards and 14 touchdowns. Abney was also received first-team all-state honors in both his junior and senior seasons. He was voted to the second team following his sophomore season.
Abney was selected in the seventh round (244th pick overall) of the 2004 NFL Draft by the Baltimore Ravens, but he was released without playing in a regular season game. Abney was signed by the Chicago Bears in the 2005 offseason, but again did not appear in a regular season game.