Sieg attended Eaton High School. As a senior, he contributed to the team achieving a Patriot League championship with a 10–1 overall record. He registered 29 receptions, 510 receiving yards, 4 touchdowns as a tight end and 67 tackles, 10 sacks as a linebacker. He posted a career-high 6 catches for 168 yards and 2 touchdowns against Valley High School.[1] He received Denver Post’s All-Colorado football honors as a linebacker.[2]
He received academic All-Colorado honors in his last two years. He also lettered in baseball and basketball.
As a sophomore, he snapped to Ray Guy Award finalist and All-American punter Hayden Hunt, who finished fifth nationally with a 46.0 yards per punt average. He appeared in all 13 games, making 2 tackles. He received Academic All-Mountain West Conference honors.
As a junior, he played in all 13 games and received Academic All-Mountain West honors.
As a senior, he appeared in all 13 games and received Academic All-Mountain West honors. He never missed a game during his college career (51).
On September 12, 2018, Sieg was signed by the Oakland Raiders to replace long snapper Andrew DePaola, who was lost for the year with a right knee ACL injury.[2] As a rookie, he appeared in the final 15 games, while helping rookie placekickerDaniel Carlson set a new franchise season record with a 94.1 field goal percentage.[6]
In 2019, Sieg was named the long snapper over DePaola, who was released on August 25, 2019.[7] He contributed to rookie A. J. Cole III setting rookie club records for punting average, net average and punts downed inside the 20-yard line.
On January 22, 2020, the Raiders moved to Las Vegas.[8] On March 27, 2020, he signed his exclusive rights tender.[9] He helped Carlson set franchise-records with 144 scored points and a 94.3 field goal percentage during the season.
On March 3, 2021, he signed a three-year contract extension with the team.[10] On November 29, 2021, he was placed on the reserve/COVID-19 list, ending a streak of 58 consecutive games played.[11] He was replaced with Carson Tinker.[12] On December 9, 2021, he was activated off the reserve/COVID-19 list. He appeared in 16 games and facilitated Carlson to break his franchise record for points scored in a single-season with 150.
In 2022, he appeared in all 17 games and made 2 special teams tackles.
On March 19, 2023, Sieg was released after the Raiders acquired long snapper Jacob Bobenmoyer, who reunited with special teams coordinator Tom McMahon.[13] He played for the team during five seasons, making 5 special teams tackles, while appearing in all but 2 games during that time.
Dallas Cowboys
On March 22, 2023, Sieg was signed by the Dallas Cowboys, to replace Jake McQuaide who left in free agency.[14] He had 2 special teams tackles and was a key part of the field goal unit, contributing to
first-year kicker Brandon Aubrey setting multiple NFL and franchise records.
On March 12, 2024, Sieg re-signed with the Cowboys.[15]