<p>Chelsea outclassed Dynamo Kiev 3-0 in the first leg of their Europa League last-16 tie but Arsenal face an uphill task to make the quarterfinals after slumping to a 1-3 defeat at French club Rennes.</p>.<p>Napoli, Dynamo Zagreb, Villarreal and Valencia will also take victories into next week’s second legs, while Sevilla against Slavia Prague and Eintracht Frankfurt against Inter Milan ended all square.</p>.<p>Chelsea were by far the better side at Stamford Bridge – they had eight shots on target to Kiev’s none - but it was not until Callum Hudson-Odoi scored a third goal in stoppage time that the scoreline fully reflected their dominance.</p>.<p>Pedro put the home side ahead after 17 minutes when he played a one-two with Olivier Giroud and set them on the road to their eighth win in nine Europa League games this season. Willian made it two with a perfect free kick after 65 minutes before 18-year-old substitute Hudson-Odoi side-footed home.</p>.<p>Arsenal took an early lead when what looked like a cross from Alex Iwobi evaded everyone and sneaked in at the far post. The match changed completely four minutes before half-time when Sokratis Papastathopoulos was sent off for a second bookable offence.</p>.<p>Rennes equalised from the resulting free-kick when Benjamin Bourigeaud rifled home at the second attempt.</p>.<p>The French team went ahead 20 minutes into the second half when Mehdi Zeffane’s shot looped off defender Nacho Monreal into the net and Ismaila Sarr made it 3-1 two minutes from time when he powered home a header from a lovely curling left-wing cross.</p>.<p>First-half goals from Arkadiusz Milik and Fabian Ruiz, and an own goal by Jerome Onguene gave Napoli a 3-0 over Austrian champions Salzburg.</p>.<p>Sevilla, who have won the Europa League three times, twice went ahead against Slavia Prague but were pegged back on both occasions in a pulsating 2-2 draw in Spain.</p>.<p> Fellow Spaniards Villarreal had a happier evening in St Petersburg and will take a solid 3-1 lead over Zenit into the second leg at home.</p>.<p>Valencia beat Krasnodar 2-1 thanks to a first-half double from Rodrigo.</p>.<p>Bruno Petkovic scored a penalty for Dinamo Zagreb to give them a 1-0 home win over Benfica while in the only game between two former winners of the UEFA Cup, Eintracht Frankfurt were held 0-0 at home by Inter Milan.</p>
<p>Chelsea outclassed Dynamo Kiev 3-0 in the first leg of their Europa League last-16 tie but Arsenal face an uphill task to make the quarterfinals after slumping to a 1-3 defeat at French club Rennes.</p>.<p>Napoli, Dynamo Zagreb, Villarreal and Valencia will also take victories into next week’s second legs, while Sevilla against Slavia Prague and Eintracht Frankfurt against Inter Milan ended all square.</p>.<p>Chelsea were by far the better side at Stamford Bridge – they had eight shots on target to Kiev’s none - but it was not until Callum Hudson-Odoi scored a third goal in stoppage time that the scoreline fully reflected their dominance.</p>.<p>Pedro put the home side ahead after 17 minutes when he played a one-two with Olivier Giroud and set them on the road to their eighth win in nine Europa League games this season. Willian made it two with a perfect free kick after 65 minutes before 18-year-old substitute Hudson-Odoi side-footed home.</p>.<p>Arsenal took an early lead when what looked like a cross from Alex Iwobi evaded everyone and sneaked in at the far post. The match changed completely four minutes before half-time when Sokratis Papastathopoulos was sent off for a second bookable offence.</p>.<p>Rennes equalised from the resulting free-kick when Benjamin Bourigeaud rifled home at the second attempt.</p>.<p>The French team went ahead 20 minutes into the second half when Mehdi Zeffane’s shot looped off defender Nacho Monreal into the net and Ismaila Sarr made it 3-1 two minutes from time when he powered home a header from a lovely curling left-wing cross.</p>.<p>First-half goals from Arkadiusz Milik and Fabian Ruiz, and an own goal by Jerome Onguene gave Napoli a 3-0 over Austrian champions Salzburg.</p>.<p>Sevilla, who have won the Europa League three times, twice went ahead against Slavia Prague but were pegged back on both occasions in a pulsating 2-2 draw in Spain.</p>.<p> Fellow Spaniards Villarreal had a happier evening in St Petersburg and will take a solid 3-1 lead over Zenit into the second leg at home.</p>.<p>Valencia beat Krasnodar 2-1 thanks to a first-half double from Rodrigo.</p>.<p>Bruno Petkovic scored a penalty for Dinamo Zagreb to give them a 1-0 home win over Benfica while in the only game between two former winners of the UEFA Cup, Eintracht Frankfurt were held 0-0 at home by Inter Milan.</p>