Wolves striker Raul Jimenez said he hopes to "return to the pitch soon" in his first statement since fracturing his skull on Sunday.
Jimenez was given oxygen on the pitch at Emirates Stadium before being taken to hospital.
"Thanks for your support messages," Jimenez, 29, tweeted.
"I will be under observation and I hope to return to the pitch soon."
Wolves fans raised £8,000 in two hours to crowd fund a giant flag dedicated to the striker.
The flag would cover seats in the Steve Bull Stand.
It has already been decided anything raised in addition to the £7,500 required for the flag will be donated to a charity of Jimenez's choice.
Wolves started collating messages of support for Jimenez on Tuesday and received more than 10,000 before the end of the day.
Jimenez had surgery following the game on Sunday, after which a Wolves statement said he was "comfortable".
The club said he had "seen his partner Daniela" and would "remain under observation for a few days".
Sunday's match was stopped for around 10 minutes to allow Jimenez to receive treatment before he was carried off the pitch on a stretcher.
Luiz played on with blood seeping from his head bandage following the incident, prompting calls for concussion substitutes to be introduced in football.
Liverpool manager Jurgen Klopp said it "makes sense" to bring them in while Alan Shearer thinks "football needs to wake up" around concussion protocols.
Arsenal said protocols were followed regarding the decision to allow Luiz to play on after the incident.
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