Complex sentence: Granit joined the then world's-second-ranking team Paris Basket Racing, where he played from 1955-57, and was the first Turkish basketballer to play in a European team.
Split into simpler sentences: Granit joined the then worlds-second-ranking team Paris Basket Racing, where he played between 1955 and 1957. He became so the first ever Turkish basketballer to play in a European team.