*Club domestic league appearances and goals, correct as of 20:27, 9 September 2024 (UTC) ‡ National team caps and goals, correct as of 20:27, 9 September 2024 (UTC)
Obert is a youth product of the youth academies of Zbrojovka Brno and Sampdoria.[2] In March 2022, he commented on his switch from Genoa to Cagliari, critically highlighting the philosophy of integration of youth players at Sampdoria, stating he did not wish to get lost in Serie C and instead sought challenges with top division senior football.[3] He joined the academy of Cagliari in the summer of 2021.[4]
Cagliari
Obert made his professional debut for Cagliari as a late substitute in a 3–0 Serie A loss to Fiorentina on 24 October 2021. It was his first nomination for a senior team match.[5] Following his arrival at Cagliari and first experiences with the first team, Obert spoke highly of his training experience with and advice from Diego Godín, expressing regret of his departure from Sardinia-based club.[6]
By February 2022, Cagliari had offered Obert a 4.5-year contract extension through to summer 2026 with a one-year option to extend.[7][8]
On 20 November 2022, Obert debuted for the Slovak senior squad Tehelné pole against Chile, replacing Vernon De Marco at the 80th minute. Obert thus became the last international to debut under the captainship of Marek Hamšík who was taken off the pitch less than ten minutes later in his final international walk off the pitch. During Obert's tenure on the pitch, the match ended in a 0–0 sdaw.[13][14]
Obert was included in Slovakia's squad for UEFA Euro 2024 and played a combined 24 minutes as a substitute, appearing in the 1–0 win over Belgium and 2–1 loss to Ukraine.[16]