If we've learned anything from the first few weeks of the 2013-14 NBA season, it's that even the toughest title contenders have hiccups to overcome.
Some teams, like the Miami Heat, shouldn't be sweating their flaws too much. Sure, the Heat started off lackluster on defense, but they've picked up their intensity in recent games and look every bit like the two-time defending champions that they are.
Others, like the New York Knicks and Brooklyn Nets, have legitimate reason to panic. Both New York squads look like shells of themselves due to injuries and inefficiency on both ends of the court.
Here, take a look at the biggest red flags we've seen pop up for eight of the preseason playoff favorites.
Note: All statistics are current through games played on Nov. 18; all records are current through games played on Nov. 19. Unless otherwise noted, all statistics come from Basketball-Reference.com or NBA.com/stats.