Teenage winger Bukayo Saka scored his first goal for Arsenal as they beat 10-man Eintracht Frankfurt 3-0 in the first round of Europa League group matches on Thursday.
Dynamo Kiev and FC Copenhagen scored 1-0 wins over Malmo and Lugano respectively in Group B while Cluj of Romania beat Lazio 2-1 and Rennes and Celtic played out a 1-1 draw in Group E.