One big talking point in an otherwise quiet game came in the second half when Leeds' Eddie Nketiah appeared to accidentally catch Joey Pelupessy with an elbow.
The Sheffield Wednesday midfielder went to ground clutching his face and Marcelo Bielsa's side fashioned a chance directly from that incident.
Referee Tim Robinson did not stop the game, despite Pelupessy seemingly suffering a head injury, and although Monk didn't see the incident, he wasn't pleased with the fact that the Whites were allowed to play on after the 'nasty' injury.
He told The Yorkshire Evening Post: "I've been told [about] this. They've got a lot of people in their technical area, I couldn't see up their line.
"The thing I was more annoyed about was they were allowed to play on, with a head injury, and get the ball into our box. Then when we got the ball to go on the attack, play was stopped. I've been told it was quite a nasty one."
Pelupessy received treatment after play was stopped on the hour mark, and Monk subbed him with six minutes left in what appeared to be a tactical decision.
It did appear to be dangerous play from the on-loan Leeds striker and perhaps on another day he might've picked up a yellow card.Still, it did look very accidental on Nketiah's part and there was almost certainly no malice intended.
Bielsa's side dropped to third in the Championship, one point ahead of the Owls.
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