Two Lille fans were stabbed during an attack carried out by dozens of Bologna supporters before the two teams' Champions League fixture, the French Ligue 1 club said on Wednesday.
John McGinn said there is no limit to Aston Villa's ambition in the Champions League after beating Bologna 2-0 to go top of the table in a dream return to the competition.
Even Jurgen Klopp, Kenny Dalglish, Bill Shankly and Bob Paisley were unable to muster as many wins at the start of their spells in charge of the Reds.
Every team will play eight games against eight different opponents in the new format of Europe's elite club competition, with all 36 clubs now pooled together into one league rather than split into groups.
Khvicha Kvaratskhelia starred as Napoli got their first win under Antonio Conte on Sunday by beating Bologna 3-0, while Roma slumped to a shock 2-1 home defeat to Empoli.
Manchester United signed Netherlands striker Joshua Zirkzee from Bologna in a deal worth a reported 36.5 million pound (46.3 million dollar) on Sunday.
In a match that might have been a test of Thiago Motta's credentials to take over Juventus, his Bologna team made a blazing start but collapsed at the end and drew 3-3 with the Turin giants on Monday.
Juventus and Bologna were both were held to goalless draws on Saturday as the Serie A clubs' bids for Champions League football were slowed by Torino and Monza.
Bologna continued their surprise Serie A charge to a Champions League spot on Friday after a stoppage-time winner by Giovanni Fabbian gave them a 1-0 win at Empoli.
Inter Milan took another step towards a 20th Serie A title on Saturday with a 1-0 win at in-form Bologna which extended their massive league lead to 18 points.
Juventus' bid for a first Serie A title in four years was hit on Saturday after Empoli snatched a surprise 1-1 draw from their 10-man hosts
Jose Mourinho will hope his "bunch of smashing lads" from AS Roma build on their impressive 2-0 win over defending Serie A champions Napoli last weekend and dent Juventus's title-chasing ambitions on Saturday
Napoli continued a perfect start to their Serie A title defence with Sunday's 2-0 win over 10-man Sassuolo
Sinisa Mihajlovic died at the age of 53 on Friday after leukemia finally got the better of a charismatic and controversial figure who was one of the most recognisable players from the golden age of Serie A
Inter Milan climbed into the top four in Serie A on Wednesday with a 6-1 thrashing of Bologna, while Atalanta slumped to a third defeat in four games at Lecce
Brazilian midfielder Arthur scored his first goal for champions Juventus in a 2-0 win over Bologna on Sunday to pile the pressure on the Milan teams.
Inter Milan are now 11 points off the pace with only eight matches of the season remaining and just one point ahead of fourth-placed Atalanta.
Juventus beat Bologna 2-0 win to move four points clear of Lazio on top of the Serie A table.