Mansfield produced a stunning second-half comeback to win 3-2 at promotion rivals Colchester.
Sammie Szmodics was denied by Mansfield keeper Jordan Smith early on while at the other end Nicky Ajose headed wide unmarked at the far post.
But Colchester took a 15th minute lead through Tom Eastman, who prodded home from close range after Mikael Mandron had headed on Courtney Senior's free-kick.
Smith denied Brennan Dickenson before Courtney Senior doubled Colchester's lead on the half-hour after drilling a low left-foot shot past Smith and into the near post.
Colchester keeper Rene Gilmartin foiled Mal Benning just before half-time but Mansfield pulled a goal back five minutes after the break when Ajose chested in Tyler Walker's cross from close range.
The Stags equalised in the 64th minute when Walker side-footed home from Jorge Grant's pass.
Mansfield completed their superb turnaround with 11 minutes remaining through CJ Hamilton, who prodded home in the six-yard box after Ajose's pass had caught the home defence napping.