Peterborough boosted their automatic promotion hopes with a 3-0 triumph that sent Port Vale plunging back into the relegation zone.

The hosts ended a frustrating first half on a high when Joel Randall’s 25-yard thunderbolt sailed past helpless keeper Connor Ripley – courtesy of a double deflection off Vale men Rhys Walters and Alex Iacovitti – to hand them the lead seconds before the break.

Randall, Ephron Mason-Clark, Ricky-Jade Jones and Kwame Poku had all squandered good chances before Ripley pulled off a fine save to deny Archie Collins, but the following corner – taken short by captain Harrison Burrows to Randall – led to Posh hitting the front.

Burrows followed up his EFL Trophy final heroics with another goal as Posh doubled their lead 11 minutes in the second half.

The captain struck for the 12th time this season when he sent Ripley the wrong way from the spot after Ryan Loft’s pull on Josh Knight.

And Burrows was again involved when Posh put the result beyond doubt in the 86th minute as his left-wing cross was headed into his own net by the unfortunate Iacovitti.

Vale fell back into the bottom four on goal difference as they failed to manage an attempt on target until second half stoppage time when substitute Uche Ikpeazu’s blast was spectacularly tipped over by Jed Steer.