Sheffield Wednesday were beaten 1-0 by Preston North End yesterday.
Joao made a blistering start to the campaign, and earned two senior Portugal caps back in 2015 after catching the eye of his national team.
However, more recently the powerful forward has struggled to hit the back of the net, and his showing against Preston North End yesterday was poor.
The 22-year-old came on for the last 20 minute against Preston, but could not help Carlos Carvalhal’s side pick up the three points.
After Joe Garner put Preston in the lead, Wednesday pushed for an equaliser, but Joao missed their best chance late on.
Wednesday’s defeat has seen them slip down to sixth in the Championship table, and Joao has taken the brunt of frustrations on social media.
Some Owls fans have accused the striker of not putting enough effort in, while others feel he is simply not good enough. Here is the best reaction on Twitter.
Is it just me who thinks the Joao is a quality player as he proved against Brentford, but right now he doesn't seem to want to play #swfc— Jonny Winbow (@JonathanWinbow) February 21, 2016
Remember somebody on here telling me Joao's worst performance was better than Nuhiu's best. How I smiled #swfc— Wincobank Owl (@stevenowls) February 21, 2016
If you think Joao is worthy of a place in the 11 over Nuhiu or anyone else then you are wrong #swfc— Ozzy (@Fxrestieri) February 21, 2016
Joao came in for a lot of stick when he came on yesterday is he the new Nuhiu #swfc— Wincobank Owl (@stevenowls) February 21, 2016
Strange substitution from CC after the red card too, Joao isn't the player you want up front when you're stretched. Anyway, on we go. #swfc— Rob O'Neill (@Rob_ONeill) February 20, 2016
Really poor today! What happened that Joao we had earlier in season? Not an ounce of effort today when he came on and forestieri wtf? #SWFC— Gavin Cook (@sirgavinofcook) February 20, 2016
Joao has scored eight goals in 35 appearances for Wednesday so far this campaign.
The Owls' next fixture comes against an out of form Queens Park Rangers side at Hillsborough.