Complex sentence: Kang made his pro league debut in for the Hyundai Unicorns, and played 74 games, serving as the back-up catcher to Park Kyung-Oan and batting a respectable.272 in 147 at-bats.
Split into simpler sentences: Kang made his pro league debut in for the Hyundai Unicorns. In that season, he played 74 games, serving as the back-up catcher to Park Kyung-Oan and batting a respectable.272 in 147 at-bats.