Complex sentence: He was called up to the Danish squad for the 1986 World Cup, and scored two goals in the three preliminary group stage matches, but he will always be remembered for making a grave mistake in the round of 16 match against Spain.
Split into simpler sentences: He was called up to the Danish squad for the 1986 World Cup. He scored two goals in the three preliminary group stage matches, but he will always be remembered for making a grave mistake in the round of 16 match against Spain.