AC Milan fight back to beat Celtic 4-2.

LONDON -- Seven-time European champions AC Milan hit back from two goals down against Celtic to claim a 4-2 victory that sent them into the Europe League knockout phase as they were among 14 teams to progress in Europe's second-tier competition.

Tottenham Hotspur, Antwerp, Lille, Villarreal, Braga, Dinamo Zagreb, Red Star Belgrade, PSV Eindhoven, Granada, Bayer Leverkusen, Slavia Prague, Rangers and Benfica joined Milan in booking their places in the last 32 on the night.

Arsenal, who along with, Leicester City, AS Roma and Hoffenheim, had already qualified, sealed top spot in Group B with a 4-1 win over Rapid Vienna as fans returned to an English Premier League stadium for the first time since March.

Two thousand supporters braved the cold to watch on as the Gunners secured a fifth successive victory in the competition and become the only team still with a 100% record.

It was amazing - we were so happy to see the fans today it really helped us during the game, French striker Alexandre Lacazette, who scored a stunning opener, said.

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