Oklahoma State University Athletics
2025-26 Cowboy Basketball Roster
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Jersey Number 72
Lefteris Mantzoukas
- Position:
- Forward
- Height:
- 6-9
- Weight:
- 230
- Class:
- Freshman
- Hometown:
- Iannina, Greece
2025-26 (Freshman):
22-year-old freshman is as battle tested as they come with parts of eight seasons spent on club teams competing in the Greek Basketball League, including four with 2024 EuroLeague champion Panathinaikos Athens, and international caps with Greece’s junior and senior national teams… Nicknamed “Lefty” but is, in fact, right-handed.
Lutz on Mantzoukas:
"Lefteris is a proven competitor with championship experience at the highest levels of European basketball. He has a deep understanding of the game, and his size and elite shooting ability will fit well within our offense. We're excited to welcome him to Stillwater."
Before OSU:
Competed over parts of the last eight seasons in the Greek Basketball League… A 40% career three-point shooter, he's converted more than 45% of his attempts across 53 EuroLeague appearances (widely considered the world's second toughest basketball league, behind the NBA)… Joined Promitheas Patras' youth program in the summer of 2015 and made his senior level debut less than three years later at age 14... In May 2018 (two months shy of his 15th birthday) became the youngest player ever to start a GBL game, scoring 12 points in 31 minutes of action… Joined Panathinaikos Athens in December, 2020. Over the next four seasons, he helped the club secure two GBL A1 titles, one Greek Cup and two Greek Super Cups along with the 2024 EuroLeague Championship… Won the Greek League’s 2023 Young Player of the Year and Most Improved Player Awards… Spent the majority of the 2024-25 season on loan to Maroussi in Greece’s top professional league where he averaged 7.4 points and 5.1 rebounds while shooting 41.9% from distance… In 28 total games with Maroussi, knocked down 40-of-95 three-point attempts (.421).
Personal:
Birthday is July 8
22-year-old freshman is as battle tested as they come with parts of eight seasons spent on club teams competing in the Greek Basketball League, including four with 2024 EuroLeague champion Panathinaikos Athens, and international caps with Greece’s junior and senior national teams… Nicknamed “Lefty” but is, in fact, right-handed.
Lutz on Mantzoukas:
"Lefteris is a proven competitor with championship experience at the highest levels of European basketball. He has a deep understanding of the game, and his size and elite shooting ability will fit well within our offense. We're excited to welcome him to Stillwater."
Before OSU:
Competed over parts of the last eight seasons in the Greek Basketball League… A 40% career three-point shooter, he's converted more than 45% of his attempts across 53 EuroLeague appearances (widely considered the world's second toughest basketball league, behind the NBA)… Joined Promitheas Patras' youth program in the summer of 2015 and made his senior level debut less than three years later at age 14... In May 2018 (two months shy of his 15th birthday) became the youngest player ever to start a GBL game, scoring 12 points in 31 minutes of action… Joined Panathinaikos Athens in December, 2020. Over the next four seasons, he helped the club secure two GBL A1 titles, one Greek Cup and two Greek Super Cups along with the 2024 EuroLeague Championship… Won the Greek League’s 2023 Young Player of the Year and Most Improved Player Awards… Spent the majority of the 2024-25 season on loan to Maroussi in Greece’s top professional league where he averaged 7.4 points and 5.1 rebounds while shooting 41.9% from distance… In 28 total games with Maroussi, knocked down 40-of-95 three-point attempts (.421).
With the Greek National Team:
Has appeared in a total of three games for the Greek senior national team at qualifying competitions for the 2025 FIBA EuroBasket and 2023 FIBA World Cup... In July 2023 helped Greece to a bronze medal at the European U20 Championship, played in Heraklion, Greece... Scored in double-figures in all seven games, averaging team-highs 16.4 points and 6.9 rebounds, capped by a double-double (10 pts, 10 reb) in the bronze medal game -- a 68-64 overtime win over Belgium.
Personal:
Birthday is July 8
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