Jean Michael ”Jurrangelo” Cijntje[1] (born May 31, 2003), also nicknamed "Loo",[2][3] is a Dutch-born Curaçaoan professional baseball pitcher in the Seattle Mariners organization.
[7] Cijntje moved to Miami when he was 16 years old, where he lived with three older cousins who had played baseball at Florida National University.
[11] He committed to play for Mississippi State University before his senior season,[12][13] and he enrolled there after not signing with the Milwaukee Brewers, who selected him in the 18th round of the 2022 MLB draft.
[16] In his first collegiate start, he struck out seven Louisiana–Monroe batters, six while pitching right-handed and one as a lefty, while allowing one hit and one walk over four innings.
[27][23] Cijntje did not pitch for the Mariners in 2024 but participated in the team's High Performance Camp at their Arizona complex in October.
[34] In high school, he said his favorite MLB pitchers were lefty Clayton Kershaw and righty Marcus Stroman,[12] who scouts have compared him to given their similar size.