Breaking down Boston's breakdown, NBA playoffs' second round

Giannis Antetokounmpo and the Bucks adjusted, Kyrie Irving and the Celtics can't score, and suddenly the Bucks are in charge up 3-1 and seem headed to the next round — this is the most clear cut, and still maybe the most interesting series of the second round. Then there is the back-and-forth series between Philadelphia and Toronto — where Kawhi Leonard has been otherworldly — that seems destined for seven games. Golden State still looks like the better team, but a lot of James Harden and physical play has that series knotted at 2-2. Then there is the entertaining and incredibly even — if a bit of a defense-free zone — series between Portland and Denver, which is also 2-2. Kurt Helin and Dan Feldman of NBC Sports break down all the series, plus talk a little Monty Williams and Tyronn Lue.