AC Milan went off the mark at the Europa League in style as they cruised to a 4-0 win at Red Bull Salzburg thanks to a hat-trick from Alphadjo Cisse.
The teenager was the star of the show in Austria, becoming the youngest Italian to score a hat-trick in a European competition, doing so at 19 years and 358 days.
Goncalo Ramos was also fit for the Rossoneri, who had Filippo Terracciano sent off at the end of the day as they bounced back from defeat to Benfica in their league opener.
Serie A rivals Juventus made it two wins from two when they came from behind to beat Celta Vigo 2-1.
Nick Woltemade equalized for Juve after Hugo Alvarez had given the hosts the lead, the on-loan Newcastle United striker pouncing on poor defending to fire home his second goal for the club.
Juve completed the turnaround in stoppage time, with Randal Kolo Muani heading home from Andrea Cambiaso’s superb cross.
There were mixed fortunes for Premier League teams. Sunderland needed a stoppage time winner to beat second-tier Portuguese Torreense 2-1, while Bournemouth were more comfortable by defeating Sturm Graz by 3-0. Crystal Palace failed to make it a clean sweep for the English sides, like them lost 3-2 at Lyon.
Scottish champions Celtic lost 4-1 at Benficaand there was an equally emphatic scoreline in Poland as Lech Poznan were beaten 4-0 at home to Bayer Leverkusen.
Hoffenheim’s miserable start to the season continued as Besiktas were beaten 3-2 at home, leaving the Bundesliga side still without a point in the competition. Marseille are also pointless after a 1-0 defeat at home to Olympiacos.
Ligue 1 rivals Rennes came from behind to beat OFI Crete 2-1, Abdelhamid Ait Boudlal scoring a 90th-minute winner. There was also late drama in Croatia as Dion Beljo’s 96th-minute penalty gave Dinamo Zagreb a 1-0 win over Anderlecht.
On the other hand, Real Sociedad got their first point by drawing 1-1 with Union Saint-Gilloise.
Other Europa League results
AZ Alkmaar 2-1 Hapoel Be’er Sheva
Celje 0-3 Omonia
Sparta Prague 1-1 Lillestrom
Ferencvaros 2-1 Viktoria Plzeň
Jagiellonia 3-1 Ararat-Armenia
NEC Nijmegen 1-1 Levski Sofia
Paris, the star of Monaco
Paris Brunner scored Monaco’s first goal and assisted Ansu Fati for the second as the Ligue 1 side opened their Conference League campaign with a 2-1 win at CSKA Sofia.
Atalanta, meanwhile, scored three first-half goals to secure a 3-1 victory over Paphos in a meeting between two sides who played in the Champions League last season, while Brighton and Hove Albion were. 4-0 winner at Kauno Zalgiris.
Mohamed Salah was on target as Trabzonspor won 4-2 at KuPS, but there was disappointment for Dutch giants Ajax, who suffered a 2-1 defeat at Hajduk Split.
Last season’s Europa League finalists Freiburg beat Jablonec 3-2, while Copenhagen produced one of the most impressive results of the first round of Conference League games, defeating Braga 3-0.
Other Conference League results
Egnatia 1-1 Central Jutland
Gent 1-0 Aarhus
Lugano 3-2 Red Star Belgrade
Mjallby 2-0 Inter Escalades
Panathinaikos 2-1 Borac Banja Luka
Riga FC 1-1 Kairat Almaty
Craiova – Getafe 1-1
Brann 2-1 Lincoln Red Imps
Hearts 1-1 Nordsjaelland
St. Truiden 2-0 Iberia Tbilisi
Twente 1-0 Thun