Britt Assombalonga's early goal secured Southend's first win of the season as they beat Wycombe Wanderers.
The 19-year-old striker, on loan from Watford, headed home from eight yards out after Matt Spring cleared Ryan Cresswell's header off the line.
John Spicer, Anthony Straker and Creswell all had chances to extend the Shrimpers' lead before half-time.
Wycombe were stronger in the second half, with Spring shooting over and Joel Grant having an effort blocked.
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Southend United manager Paul Sturrock told BBC Essex:
"We made it hard for ourselves. We had several chances in the first half and early in the second and, if we'd put them away, it would have been much easier.
"I did feel we played in the right way and in the right tempo in the first half, but in the second we dropped back 10 yards which made it hard to support the front players - whereas in the first half we were very positive and got into the right areas.
"Four points in a week, you'd take that every time."
Wycombe manager Gary Waddock told BBC Three Counties Radio:
"We didn't start the game right at all. We conceded early on, we were trying to chase the game, and the performance in the first half has basically been our downfall.
"We've had a conversation in the dressing room regarding why we haven't started games well this season, but you can talk as much as you like.
"It's about actions and when you start a game you have to be right on it. Today we weren't and it cost us.
"It's a tough league, we knew it would be. It's all about competing and today the group of players didn't really do that."