Costa made a rare start as Wolverhampton Wanderers beat Brentford on Tuesday.
Wolverhampton Wanderers fans are wondering what has happened to Helder Costa.
The Portuguese winger lit up Molineux last season, scoring 12 goals and making another 11 for his teammates.
So good was Costa's form in the fist half of 2016-17 that Wolves paid a then club record £13 million to sign him permanently from parent club Monaco.
The 23-year-old's campaign was cut short a month early, however, and by the time of his return to action in late September, Wolves were a team transformed.
The fine form of Ivan Cavaleiro and Diogo Jota has restricted Costa to six starts all season, the latest of which came against Brentford on Tuesday.
But despite running out 3-0 winners at Molineux, it was not until after Costa's departure in the 54th minute that the home side made their breakthrough, with quickfire goals from Ruben Neves and Barry Douglas, and another from Diogo Jota 10 minutes from time, doing the damage.
Here's what Wolves fans are saying about their number 17's display...
Cav is different class atm, Costa on the other hand what's happened to him #wwfc— Tom Wolverson (@tom_wolverson) 2 January 2018
Differing tale of two Portuguese flair players tonight. Cav purring like a finely tuned Aston Martin, Costa looking like he needs an oil change #wwfc— Russ Cockburn (@Dwarfio) 2 January 2018
Costa still doesn't look right to me... Soon as he came off for Cav the team looked miles better. Great atmosphere again though. Buzzing! #WWFC— Craig Whitlock (@cwhitlock1986) 2 January 2018
Costa's body language is all off there. He's within himself and feeling sorry for himself. Doesn't wanna be here by the looks of it— Robert Kostur (@Robbo_WWFC) 2 January 2018
Costa needs to start being more positive on the ball or he’s simply not worth his place at mo ( never thought I’d say that ) #wwfc— Simmo (@simbawolf7) 2 January 2018
@Wolves Helder Costa needs a run of games he's looking low on confidence right now— (@Antonio__NG) 2 January 2018
Costa off then. What a great 6 months he had in a wolves shirt.— . (@simonsayswoo) 2 January 2018