LAKE FOREST, Ill. (AP) After three weeks of success, adversity hit the Chicago Bears in waves.

An injury to pass rusher Khalil Mack, a key missed field goal, turnovers at critical times, penalties, and a faltering defense all combined to help take down the Bears 31-28 in overtime Sunday against the Miami Dolphins.

The mistakes ended a three-game winning streak by Chicago (3-2) and even led to the first real criticism for coach Matt Nagy. On Monday at Halas Hall, Nagy stood up for his share of blame.