Sinead Jack Kñsal (born Sinead Jack, 8 November 1993 in San Juan, Trinidad and Tobago) is a Trinidadian and Tobagonian-born Turkish female professional volleyball player. She plays as middle blocker. Currently, she plays for the Turkish club Eczacñbaà Âñ. In the past, she was a member of the Trinidad and Tobago women's national volleyball team. She has Turkish citizenship by marriage, and was selected to the Turkey women's national volleyball team.
Sinead Jack was born in Trinidad and Tobago on 8 November 1993. On 8 August 2019, she married Turkish volleyball player Murathan Kñsal (born 22 November 1989), and gained Turkish citizenship.
She is and plays in the middle blocker position.
After starting her sports career in Trinidad and Tobago, Sinead Jack made her first professional signing with the Polish team AZS Biaà Âystok in 2010. Later, she took part in the squad of Uralochka-NTMK in Russia (2013-2016). For the 2016âÂÂ17 season, she signed with the Turkish club Galatasaray in Istanbul. Due to her significant contribution to the team's success, her contract was extended for one year in July 2017. Later, she was with Denso Airybees in Japan (2018-2020), ðlbank in Turkey (2020-2021), Chemik Police in Poland (2020-2021) and Megabox Del Savio Vallefoglia in Italy (2021-2022), respectively. In 2022, she transferred to Eczacñbaà Âñ in Turkey.
Playing for the Trinidad and Tobago women's national volleyball team, she participated at the 2011 Women's Pan-American Volleyball Cup. Jack won the 2013 NORCECA Championship Best Middle Blocker award. She won the 2017 Pan-American Cup Best Middle Blocker award, and the same award in the 2018 Central American and Caribbean Games.
In January 2025, the Turkish Volleyball Federation stated that Jack Kñsal will be eligible to play for the Turkey women's national volleyball team due to her Turkish citizenship obtained by marriage years ago. In April 2025, she was selected to the Turkey national team for the 2025 FIVB Women's Volleyball Nations League.