Blues suffer agonising late defeat to Stevenage at the Lamex Stadium.
Southend United suffered an late defeat to Stevenage at the Lamex Stadium in Sky Bet League Two, losing 4-2 to the Hertfordshire outfit.
Second half goals from Joe Pigott and a Barry Corr penalty put Southend in control and winning 2-1, but Graham Westley's Boro side battled back and netted a penalty of their own to even up the scores.
But with five minutes remaining, Ben Kennedy bagged a third for Stevenage before setting up Dean Parrett late into added time.
Manager Phil Brown rung the changes ahead of the game. Corr, Dan Bentley, Cian Bolger, Adam Barrett, Gary Deegan, and David Worrall all came in for Southend, with Will Atkinson, Jack Payne, Jerome Binnom-Williams, and Jake Cassidy dropped to the bench.
Adam Thompson was been left out of the squad altogether, as was last week's debutant Ted Smith.
The hosts started well, and forced a succession of corners. Blues best chance in the opening stages of the match came from Ryan Leonard, who collected a neat Ben Coker pass, but saw his effort from 20 yards go past Stevenage 'keeper Chris Day's right-hand post.
On the half an hour mark the hosts took the lead. Roarie Deacon's low cross from the left evaded everyone and found its way into the bottom corner of Bentley's net.
The response from Blues was good, and the visitors had a good shout for a penalty after Corr was hauled down in the penalty area. However, referee Geoff Eltringham waved the pleas away.
Pigott was next to go down in the area, but again, the shout was in vain.
Four minutes into the second half and Blues had their equaliser. Great play from Michael Timlin set Worrall away and his cross was volleyed emphatically past Day by Pigott, sending the visiting fans behind the goal into raptures.
And moments later Blues had a second goal, from the penalty spot. Worrall did well to get to the byline again and was caught by a rash Simon Walton challenge. The referee pointed to the spot and up stepped the returning Corr to slide the penalty right into the bottom left-hand corner to give Southend the lead.
With 15 minutes of the game remaining, Stevenage had a penalty of their own. Substitute Ben Kennedy was brought down in the box by Leonard, and Walton send Bentley the wrong way from the spot to level the scores up.
Brown through on Jake Cassidy and Kevan Hurst in a bid to regain the lead, and the former had a great chance to do just that with ten minutes left.
The two substitutes combined well, and after a Hurst cross, Cassidy turned his man brilliantly but fired straight at home goalkeeper Day.
And with the game going into the last five minutes, the hosts grabbed the winning goal through their highly rated forward Kennedy.
Substitute Calvin Zole found the youngster out on the right and he cut in before placing the ball beyond Bentley and into the corner of the net.
And Kennedy then set up Parrett, who drilled under the onrushing Bentley to add gloss to the scoreline for the hosts.
Blues: Bentley; White (c), Bolger, Barrett, Coker; Worrall, Leonard, Deegan (Coulthirst, 86), Timlin (Hurst, 75); Pigott, Corr (Cassidy, 77)
Unused substitutes: Atkinson, Payne, P. Smith, Binnom-Williams