I want to know the answer to the following question:
What development has made it unnecessary for MLB teams to play exhibition games with teams from other leagues?
All the background I'm provided with is that "The two Canadian MLB teams, the Toronto Blue Jays of the American League and the Montreal Expos of the National League, met annually to play the Pearson Cup exhibition game; this tradition ended when the Expos moved to Washington DC for the 2005 season.". Is that enough to answer the question?
Answer: no