United landed Washington on a year-long deal for free after the Northern Irishman's QPR contract was terminated by mutual consent hours earlier.
And after a couple of cameos off the bench, Washington was handed a full debut ahead of the Blues' visit, which ended in a 0-0 draw.
But how did the 21-year-old get on? This is what those of a Sheffield United persuasion are saying about his performance on Twitter...
Connor Washington = Connor Sammon with hair. Looks hapless and hopeless. He will be playing in the Conference in four seasons. We really have to rethink the transfer & wages strategy if we want to be genuine promotion contenders. #sufc #TwitterBlades— Neil Peter (@Neil1889) September 20, 2018
How can we expect to beat anyone with Connor Washington upfront Jesus Christ he’s poor♂️ @SUFC_tweets— will (@willhinchsliffe) September 19, 2018
Stuart Wilson @Jafooolie: Washington was ****. Start Sharp and McGoldrick every game. Fitness should not be an issue at this level of football. #sufc #twitterblades
Worst by a mile. What we learned is that Norwood’s twin brother is garbage. Johnson will probably frustrate and delight in equal measure and Washington (possibly) isn’t good enough. Oh..and Basham should give MoM to Henderson.#twitterblades#sufc— Paul Tilley (@PtilleyTilley) September 20, 2018
Washington was poor has well did he even have a shot on goal— David swann (@swann2204) September 20, 2018
Can’t just write it off as a one off when we struggled against that ‘park the bus’ set up at home all last season. Some of the deliveries into the box first half were a strikers dream but Washington and Clarke not up to it! Can’t help but think we’ve improved individual 1/2— Lee Johnstone (LJ) (@Johnstone_87) September 19, 2018
2/2 positions in the transfer window but not the team as a whole it’s all the same as last year. The big task was changing our front line for the better and we haven’t.— Lee Johnstone (LJ) (@Johnstone_87) September 19, 2018
Washington has failed to score in any of his nine appearances this season, six of which came in QPR colours.
And his lack of goals saw Rangers bring in two new strikers - Tomer Hemed and Nahki Wells - towards the end of the summer transfer window.
What did you make of the former QPR player's full debut for Sheffield United?
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