Quimsa (2010–2016) Deck started his professional career with the
Argentinian LNB club
Quimsa.
San Lorenzo (2016–2018) In 2016, Deck joined the Argentine club
San Lorenzo. With San Lorenzo, he won the
2018 FIBA Americas League championship while also being named the league's
Grand Final MVP. Deck was also the competition's top scorer, with a scoring average of 19.1 points per game, over eight games played.
Real Madrid (2018–2021) On July 19, 2018, Deck signed a three-year deal with
Real Madrid of the
Liga ACB and
EuroLeague after he reached a buyout agreement with
San Lorenzo. In his first season with the club, he made a debut in the
2018–19 EuroLeague season, averaging 4.4 points and 2.4 rebounds over 31 games. He averaged 4.8 points and 2.9 rebounds in the Spanish League over 30 games. In his last season, Deck appeared in 58 games, averaging 9.7 points, 3.8 rebounds, and 1.2 assists in 23.9 minutes while shooting 52.1 percent from the field.
Oklahoma City Thunder (2021–2022) On April 12, 2021, Deck signed a multi-year contract with the
Oklahoma City Thunder of the
NBA. On January 4, 2022, Deck was waived by the Thunder.
Return to Real Madrid (2022–present) On January 19, 2022, Deck returned to Real Madrid, signing a two-year deal. On June 28, 2023, Deck renewed his contract with the historic club through 2028. ==National team career==