Which Favorites Are on Upset Alert in the 1st Round of the NBA Playoffs?

History has shown that anything can happen in the NBA playoffs, and several higher-seeded teams better be on their game in the first round or risk going home early. 

Which favorites are on upset alert in the first round of the NBA playoffs?

Watch Stephen Nelson and Bleacher Report NBA Analyst Ric Bucher discuss teams on upset alert in the video above.