AS Roma ended Midtjylland's perfect record in the Europa League with a 2-1 home win on Thursday.
Meanwhile, Donyell Malen double earned Aston Villa a 2-1 win over Young Boys where the Swiss away fans disrupted proceedings at Villa Park.
Elsewhere, Celtic came from behind to claim a vital victory at Feyenoord.
Midtjylland were the only side on maximum points after four matches but it was Roma who went in front at the Stadio Olimpico in the seventh minute.
Zeki Celik's floated pass into the box was met by the crisp volley of Neil El Aynaoui to put the Serie A leaders in control and Roma looked to have wrapped up the win seven minutes from time with Stephan El Shaarawy's side-footed finish.
The visitors pulled one back with three minutes remaining, substitute Paulinho's goal making for a nervy ending for the home side. El Shaarawy rocked the crossbar with another effort and Roma held on, and are now on nine points.
Midtjylland still hold the lead in the table, but Villa's win moves the Premier League side level on 12 points with the Danish side.

Zverev brushes aside Darderi to reach US Open quarter-finals
Gauff downs fellow American Jovic to reach US Open last eight
Liam Lawson to replace injured Isack Hadjar again in Madrid
Rybakina thumps Osaka to reach US Open quarters, close in on top ranking
Zheng stuns Swiatek at US Open as Andreeva extends winning run
