Gomes, 23, collided with Reims defender Amadou Kone in the 11th minute of the Ligue 1 match, and was immediately treated on the pitch.
Kone was sent off and Gomes was stretchered off before being taken to hospital, with the match being delayed for 34 minutes.
Fans of both sides sang the United Academy graduate's name while he received treatment and, later on Saturday, Lille confirmed that the midfielder had regained consciousness.
Sending love and strength to @AGomes_47, who has been taken to hospital following a collision while playing for Lille.
We’re thinking of you, Angel u2764ufe0f https://t.