Players from both sides appeared shaken after Welbeck landed awkwardly from an innocuous-looking challenge in the 25th minute.
"The objective is for him to come back to us and grow up with us after this experience".
Despite receiving limited playing time in the Premier League this season, Welbeck had registered five goals in 12 games for the Gunners.
Sporting arrived in N5 in a state of disarray despite sitting second having garnered six points from their three matches.
"His injury was with the mentality of the players".
Emery said after the game: "Lichtsteiner's injury changed our idea on the match, we wanted to change for Eddie Nketiah and give another chance for the striker".
"His commitment with us is very big". "We are thinking how he can help us in the future".
Nevertheless, a point was enough to secure Arsenal's qualification from the group stages, although Emery insists he wants to finish top.
Numerous fans had differing reactions to how the game went on social media, with some just pleased that they have qualified for the latter stages, whilst others were disappointed with the performances from some of their players. "We will know [more] about his injury tomorrow".