Here's what you need to know before the win-or-go-home showdown in the Western Conference semifinals.
Dallas storms back late as P.J. Washington hits clutch free throws to send the Mavs to the West Finals.
Luka Doncic took yet more steps in his superstar career during Dallas' West semifinal series victory over Oklahoma City.
Jaylen Brown takes on a bigger leadership role to help Boston reach the Eastern Conference finals for the 3rd straight year.
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