Arsenal boss Mikel Arteta says improved body language has been key to Alexandre Lacazette's form revival.
The 29-year-old has been leading Arsenal's recent revival after a crisis of confidence earlier in the season.
Arteta said: "Laca is in better form and that is linked to the confidence from playing and scoring.
"When our players are going through difficult moments we have to be right behind them.
"We talk to them and give them the tools to resolve the issues they are going through.
"In Laca's case, it was related to being better in his movement and his body language.
"He's done that by committing himself to working hard.
"When his confidence improved he became a different player."
Lacazette went off in Saturday's 0-0 draw with Manchester United after a blow to the head while challenging Harry Maguire.
Arteta said: "We have had to follow the concussion protocols.
"But he was completely fine after the game, he was fine the following day and slept well.
"I am expecting him to be able to play at Wolves."
