Complex sentence: In 1992, the 6' 5 Dutchman reached his first Grand Slam semifinal at the Australian Open, but then had to withdraw from his semifinal match due to a shoulder injury.
Split into simpler sentences: In 1992, the 6' 5 Dutchman reached his first Grand Slam semifinal at the Australian Open. He had to withdraw from this semifinal match due to a shoulder injury.