Images from Europa and Champions League matches played on Wednesday.
The draw also produced a clash between two former European champions with AC Milan facing Serbia's Red Star Belgrade while French league leaders Lille face Ajax Amsterdam in a fascinating tie.
Manchester United and Tottenham Hotspur built hefty leads with emphatic away wins in their Europa League last 32 first-leg matches but AC Milan were held to a 2-2 draw at Red Star Belgrade as the competition resumed on Thursday.
AC Milan have been drawn to play Manchester United in what is the standout tie in next month's Europa League round of 16.
Leaders Porto suffered a shock 2-1 defeat at Famalicao as Portugal's Primeira Liga became the latest league to return to action following the coronavirus stoppage on Wednesday.
Arsenal teenager Bukayo Saka scored his first goal for the club as they beat 10-man Eintracht Frankfurt 3-0, while Manchester United's 17-year-old Mason Greenwood secured a 1-0 win over FC Astana as the Europa League group stage began on Thursday.
On a good night for English clubs in the Europa League, Manchester United hammered AZ Alkmaar 4-0, while Wolverhampton Wanderers also thrashed Besiktas 4-0 in Group K, and Arsenal came from two goals down to draw 2-2 away to Standard Liege and finish first in their pool. The upset of the night came in Group J as Crivelli scored a 90th-minute winner against Borussia Moenchengladbach to send Basaksehir through and knock the Germans out, with AS Roma grabbing the runner-up spot thanks to a 2-2 home draw with Wolfsberger as the Europa League group stage concluded on Thursday.
Kazakhstan's Astana fought back to beat a youthful Manchester United side 2-1 at home, Arsenal's woes continued as Frankfurt's Daichi Kamada scored twice to secure a 2-1 win.
Unai Emery's side were heading for a demoralising defeat, three days after losing meekly to Sheffield United in the Premier League, but substitute Pepe's late intervention kept the Gunners top of Group F with a maximum nine points.
Twenty current and former footballers in the Austrian league are being treated as suspects over match-fixing and up to 17 first and second division matches could have been manipulated in the last seven years, criminal investigators said on Thursday.