Siriki Dembele opened the scoring in the 76th minute before assisting Louie Sibley for a 90th-minute second strike.

Gatlin O’Donkor bagged a third goal with the final kick of the game to secure three points for Aaron Ramsey’s relentless Yellows.

A second clean sheet in a row with seven goals in two games show United are a force to be reckoned with in the third division.

The game began slowly with Oxford trying to assert dominance on the ball but with Burton restricting any avenues forward.

It took 18 minutes for a first shot at goal to come in, Cameron Brannagan lining one up on his weaker left foot but seeing it blocked.

A first half littered with disruptive fouls saw a booking each, interspersed by Missanga seeing a second Yellows attempt thwarted.

The biggest chance arrived for the Brewers, however, Simon Eastwood spreading himself to stop a shot in the box from William Collar.

Early chances in the second half saw a Siriki Dembele effort blocked before Raphael Rodrigues ventured into the box only to drag a shot wide with Eastwood motionless.

Missanga found a first Oxford effort on target shortly after, Corey Addai saving it fairly comfortably, before Michal Helik slid in the block a dig at goal from Rodrigues.

Burton ventured forward again, this time Charlie Webster forcing a diving save from Eastwood with a curling effort.

Webster had another go but was blocked this time before a mix up between Eastwood and Brown saw Rodrigues take aim at an empty goal only for a yellow shirt to get in the way.

Momentum then shifted, Peter Kioso heading over before Siriki Dembele forced a save from Addai.

Dembele then found the long-awaited opener as substitute Tyler Goodrham played Missanga in at the by-line, the 18-year-old cutting the ball back to the goal scorer who put the ball into the roof of the net.

The U’s continued their momentum, O’Donkor lashing the ball onto the crossbar not long after, swivelling well after a low cross found the striker.

Oxford then found an important second, Louie Sibley arrowing into the bottom right corner from outside the box.

And it did not end there as United poured misery onto Burton, a beautiful passage of one-touch play falling to O’Donkor’s feet who tucked home a third.

Yellows: Eastwood, Kioso, Helik, Brown, Spencer (Currie 61), Brannagan, McDonnell (O’Donkor 61), Andrews, Missanga (Snowden 86), Harris (Sibley 86), Dembele

Brewers: Addai, Armer (Araujo 46), Chauke, Sibbick, Webster, Collar (Krubally 62), Lofthouse, Tilt, Rodrigues, Vickers (Adom 62), Lewis (Sraha 68)

Bookings: McDonnell; Lewis