Yeovil failed to score for the third home game running as they slipped to a 1-0 defeat at the hands of Colchester United.
A 38th minute winner from Kayode Odejayi secured the U's position in the play-off places and condemned the home side to a third game without a win at Huish Park.
Yeovil manager Terry Skiverton made just one change to the starting eleven from Saturday's draw with Gillingham. Ryan Mason was the extra loanee and he was replaced by Arron Davies (pictured) returning for his second "debut".
The early exchanges were tempered by both teams struggling to get used to a greasy surface after two hours of rain before the match. The Glovers earned an early corner that came to nothing but neither side looked troubled in the first quarter hour.
Clive Platt forced Yeovil keeper Alex McCarthy into a save with his feet and within sixty seconds, Andy Welsh had U's keeper Ben Williams scrambling to push the ball away for a corner.
David Prutton volleyed wide on eighteen minutes and two minutes later, Odejayi frightened the Glovers with a shot that hit the bar after a penalty box scramble. Captain Stefan Stam was injured in the scramble and he was stretchered off to be replaced by Craig Alcock for the third consecutive game.
Yeovil pressed forward and Sam Williams curled a shot wide before both Andy Welsh and Dean Bowditch saw their efforts blocked by the committed Colchester defence.
Odejayi went down claiming he had been pushed in the box just after the half hour but referee Darren Sheldrake was having none of it but the same player scored the clincher with seven minutes of the first half left. The big, ex-Cheltenham striker exchanged passes with Anthony Wordsworth and Clive Platt before slotting home.
Both Bowditch and Williams had half chances to level things up before the break but nothing came of them.
The second half mirrored the first with Yeovil having more of the chances than their lofty visitors but doing little of note with them. Danger man Odejayi limped off after ten minutes of the second period with Steven Gillespie coming on for him and the ex-Bristol City striker looked livelier when coming on.
McCarthy held a Prutton volley easily and the Glovers almost levelled straight away when Bowditch controlled well but fired over at the far post.
The game was opening up a little with chances at either end, Yeovil being slightly more culpable with them. Owain Tudur Jones curled a right foot shot wide of the far post and Alcock headed straight at Williams from a corner.
Gillespie nearly added a second but McCarthy snmartly saved again and Wordsworth hit his effort well wide as the U's broke on the counter attack.
The closing fifteen minutes were punctuated by unpunished timewasting at throw-ins and goal kicks and despite four minutes of time added on, there was to be no last minute heroics.
Tudur Jones fired a free kick into the side netting and Shaun MacDonald volleyed over but the Glovers slipped to their fourth home defeat of the season, not ideal preparation for Saturday's big trip to the Valley to take on another play-off contender in Charlton Athletic.