Complex sentence: Wang Nan (China) is the all-time Olympic medal leader, having won five medals; with compatriots Deng Yaping and Zhang Yining, Wang Nan also has the most Olympic gold medals (4).
Split into simpler sentences: Wang Nan (China) is the all-time Olympic medal leader, having won five medals. Together with compatriots Deng Yaping and Zhang Yining, Wang Nan has also the most Olympic gold medals (4).