Matt McClure scored twice as Wycombe beat 10-man Southend to stay top of the League Two table.
Jack Payne put Southend ahead inside two minutes, but Paris Cowan-Hall levelled before McClure tapped in Sam Wood’s pass to put the Chairboys ahead.
Southend were reduced to 10 men when Jerome Binnom-Williams was sent off for a tackle on Josh Scowen.
Joe Jacobson’s superb free-kick added to the lead before McClure rounded off a comfortable win from 20 yards.
The victory put Wycombe two points clear at the top, with Southend, who had won their four previous games, dropping to eighth.
Wycombe manager Gareth Ainsworth told BBC Three Counties Radio:
“It’s possibly the result of the season so far. It’s a really strong Southend team that came here today. I thought we were outstanding today.
“We’ve got some big games coming up over the Christmas period. Get down here and get behind your boys. Be proud of your boys. I’m extremely proud of everybody involved with Wycombe today.
“We’ve got to stay consistent, we’ve got to stay grounded. We’ve got to keep working so hard and keep things going. I’m so pleased because we worked really hard in training and it paid dividends.”
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