Complex sentence: Harris made his major-league debut in with the Cubs, but was sent at the July 31 trade deadline to the Montréal Expos as part of an eight-player, four-team trade that brought Nomar Garciaparra to Chicago.
Split into simpler sentences: Harris made his major-league debut in with the Cubs. He was sent at the July 31 trade deadline to the Montréal Expos as part of an eight-player, four-team trade that brought Nomar Garciaparra to Chicago.