Being orthodox, I’d say no.
Sandy Koufax never pitched on Saturday due to religious reasons.
FYI, Koufax was not orthodox, he did play on Friday nights, Saturday and minor holidays. He did observe the High Holiday Yom Kippur by not pitching in the World series.
This orthodox basketball player presumably would need to be excused from playing and traveling on every Sabbath and holiday. He’d need to eat Kosher food etc. Would be interesting