By Nick Teale
After a "difficult" two months out through injury, Denilson described scoring on his 100th Arsenal appearance as "a dream".
The Champions League win over Standard Liege was the Brazilian's first start since being forced off with a back injury during the trip to Manchester City in September.
The 2-0 win on Tuesday night also marked his 100th appearance in Arsenal's colours and the 21-year-old celebrated the occasion by scoring the Gunners' second - a 30-yard stunner.
Speaking after the match, Denilson expressed his delight at scoring in a game that marked a personal milestone in his Arsenal career.
"I'm very proud of this night," he said. "It's a dream for me.
"Two months out was very difficult but I am back now so I have to play well in all the matches."
The Brazilian went on to explain that there is a good vibe among the players as they prepare for Sunday's match against Chelsea.
"I am very happy at the moment. Not only me but also all the group is very happy.
"On Sunday we have a hard game against Chelsea, a big team, so every game we have to focus."