1. FC Köln Downs is a youth product of
1. FC Schweinfurt 05 and
FC Ingolstadt. On September 28, 2020, he joined the youth academy of
1. FC Köln. He was promoted to
1. FC Köln II in 2023, and signed his first professional contract with the club on May 2, 2023 until 2026. On September 23, 2023, he debuted with the senior Köln team as a late substitute in a 2–1
Bundesliga loss to
Werder Bremen. Downs scored his first career Bundesliga goal on March 9, 2024 against
Borussia Mönchengladbach. On May 11, 2024, he scored the match-winner in stoppage time against
Union Berlin. Downs finished the season with two Bundesliga goals in just 173 minutes played, receiving limited opportunities in his club's relegation. In the
2024–25 1. FC Köln season in the
2. Bundesliga, Downs helped Köln to the league title and automatic promotion to the Bundesliga. He had 11 goals and six assists in just 1,964 minutes played across all competitions, including a goal and assist against
Bayer Leverkusen in the
2024–25 DFB-Pokal quarterfinals. Downs finished the season tied for the lead in goalscoring for his club.
Southampton On July 9, 2025, Downs joined
Southampton on a four-year contract. He made his debut on August 9, in a 2–1 victory against
Wrexham. On January 7, 2026, Downs joined
Hamburger SV on loan for the remainder of the
2025–26 season. ==International career==