Dagenham and Redbridge ended Stevenage’s eight-match unbeaten run in Sky Bet League Two with a 1-0 at the Lamex Stadium.
Luke Howell’s controversial second-half goal was all that separated the teams after 90 minutes.
Boro were the better team throughout the first half and for the last 15 minutes of the game but, for the second match running, they could not find a clinical edge.
The result dropped them to ninth in the table.
Ugly scenes followed the final whistle after Ronnie Henry was the victim of an alleged biting incident.
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