The victory saw Boro move to within five points of sixth place, as they look to make up the ground on the likes of Reading and Barnsley with just nine matches of the season left to go.
Speaking after the game, Lilywhites boss Alex Neil slammed the match officials for sending off midfielder Alan Browne in the first-half, after he had the last word in an off-the-ball scrap with Sam Morsy:
Neil contended: “It’s an extremely poor decision. I have seen it back. Sam Morsy hits him with his forearm on the back of his head, he is right in front of them.
“Alan instinctively reacts because not only has he been hit once, it’s twice. It is hard to accept and understand how the ref and assistant can see Alan’s part but not Sam Morsy’s part. It changed the game in their favour. Their player is the aggressor and our player reacted in that instance.”
Next up, Boro will look to continue racking up the points this weekend, when they travel to take on Millwall in the capital tomorrow afternoon.
Here are today's biggest transfer stories and the latest team news involving Middlesbrough and the rest of the Championship, as the build-up to the upcoming weekend's action continues:

. PRESTON, ENGLAND - OCTOBER 22: A general view of the EFL matchball prior to the Sky Bet Championship match between Preston North End and Leeds United at Deepdale on October 22, 2019 in Preston, England. (Photo by Lewis Storey/Getty Images)
Championship transfer news (Photo by Lewis Storey/Getty Images) Photo: Lewis Storey

. Cabango secure another new deal
Swansea City starlet Ben Cabango has bagged his second contract extension in as many years, with his previously deal, which was set to run until 2023, being stretched with new terms until 2025. (Club website) Photo: George Wood

1. Cabango secure another new deal
Swansea City starlet Ben Cabango has bagged his second contract extension in as many years, with his previously deal, which was set to run until 2023, being stretched with new terms until 2025. (Club website) Photo: George Wood

2. Cellino opens up on Birmingham interest
Brescio owner Massimo Cellino has suggested that the COVID-19 pandemic "slowing down" his attempts to buy Birmingham City caused him to pull out of a deal. Ex-Blues boss Pep Clotet is now managing the Serie B outfit. (Sport Witness) Photo: Emilio Andreoli

3. Swans loanee could leave Villa this summer
Ex-Aston Villa defender Alan Hutton has suggested that the club could look to move on Conor Hourihane this summer. He's currently on loan with Swansea City, where he's scored five goals so far this season. (Football Insider) Photo: Matthew Lewis

4. Hornets swear over Sarr
Watford look set to sweat over the fitness of key man Ismaila Sarr, after the in-form winger was forced off the field with injury against Rotherham United earlier in the week. He could yet feature against Birmingham this weekend, however. (Watford Observer) Photo: Ross Kinnaird