<p class="title">Pedro Rodriguez starred as Chelsea withstood a spirited Slavia Prague fightback in a wild 4-3 victory to qualify for the Europa League semifinals on Thursday, while Arsenal knocked out Napoli after an assured display in Italy.</p>.<p class="bodytext">Leading 1-0 from last week's first leg in the Czech capital, Chelsea appeared to be cruising towards the last four after an early goal blitz at Stamford Bridge.</p>.<p class="bodytext">Pedro struck the opener on five minutes before an unfortunate Simon Deli turned into his own net and Olivier Giroud added a third with barely quarter of an hour gone in London.</p>.<p class="bodytext">Tomas Soucek pulled one back for Slavia on 26 minutes, but Spain forward Pedro replied immediately to restore the Blues' three-goal lead.</p>.<p class="bodytext">Maurizio Sarri's side were made to sweat though as two sublime, quick-fire goals by Petr Sevcik just after half-time gave Slavia hope of an incredible comeback with 35 minutes still to play.</p>.<p class="bodytext">Chelsea eventually saw off the threat to progress 5-3 on aggregate despite an unconvincing second-half display.</p>.<p class="bodytext">"We have been efficient up front and solid at the back but we dropped our intensity after the break," Giroud, who scored his competition-leading 10th goal, told BT Sport.</p>.<p class="bodytext">The 2013 Europa League champions will meet Eintracht Frankfurt in the last four after the Germans eliminated Benfica on away goals.</p>.<p class="bodytext">Eintracht lost 4-2 in Portugal a week ago, but goals by Filip Kostic and former Bayern Munich midfielder Sebastian Rode sent the German Cup holders through at the Commerzbank Arena.</p>.<p class="bodytext">In Italy, Alexandre Lacazette drilled in a terrific free-kick on 36 minutes at the Stadio San Paolo as the Gunners completed a 3-0 aggregate victory over Carlo Ancelotti's Napoli.</p>.<p class="bodytext">"We came here with ambition and wanted to win and score some goals. We did it with Laca," Arsenal captain Laurent Koscielny told BT Sport.</p>.<p class="bodytext">Arsenal boss Unai Emery will come up against one of his former clubs Valencia for a spot in the final.</p>.<p class="bodytext">Valencia eased through with a 5-1 aggregate win over Villarreal in an all-Spanish affair.</p>.<p class="bodytext">Toni Lato and Dani Parejo grabbed the goals in a 2-0 second-leg victory for Valencia coach Marcelino against his former club.</p>
<p class="title">Pedro Rodriguez starred as Chelsea withstood a spirited Slavia Prague fightback in a wild 4-3 victory to qualify for the Europa League semifinals on Thursday, while Arsenal knocked out Napoli after an assured display in Italy.</p>.<p class="bodytext">Leading 1-0 from last week's first leg in the Czech capital, Chelsea appeared to be cruising towards the last four after an early goal blitz at Stamford Bridge.</p>.<p class="bodytext">Pedro struck the opener on five minutes before an unfortunate Simon Deli turned into his own net and Olivier Giroud added a third with barely quarter of an hour gone in London.</p>.<p class="bodytext">Tomas Soucek pulled one back for Slavia on 26 minutes, but Spain forward Pedro replied immediately to restore the Blues' three-goal lead.</p>.<p class="bodytext">Maurizio Sarri's side were made to sweat though as two sublime, quick-fire goals by Petr Sevcik just after half-time gave Slavia hope of an incredible comeback with 35 minutes still to play.</p>.<p class="bodytext">Chelsea eventually saw off the threat to progress 5-3 on aggregate despite an unconvincing second-half display.</p>.<p class="bodytext">"We have been efficient up front and solid at the back but we dropped our intensity after the break," Giroud, who scored his competition-leading 10th goal, told BT Sport.</p>.<p class="bodytext">The 2013 Europa League champions will meet Eintracht Frankfurt in the last four after the Germans eliminated Benfica on away goals.</p>.<p class="bodytext">Eintracht lost 4-2 in Portugal a week ago, but goals by Filip Kostic and former Bayern Munich midfielder Sebastian Rode sent the German Cup holders through at the Commerzbank Arena.</p>.<p class="bodytext">In Italy, Alexandre Lacazette drilled in a terrific free-kick on 36 minutes at the Stadio San Paolo as the Gunners completed a 3-0 aggregate victory over Carlo Ancelotti's Napoli.</p>.<p class="bodytext">"We came here with ambition and wanted to win and score some goals. We did it with Laca," Arsenal captain Laurent Koscielny told BT Sport.</p>.<p class="bodytext">Arsenal boss Unai Emery will come up against one of his former clubs Valencia for a spot in the final.</p>.<p class="bodytext">Valencia eased through with a 5-1 aggregate win over Villarreal in an all-Spanish affair.</p>.<p class="bodytext">Toni Lato and Dani Parejo grabbed the goals in a 2-0 second-leg victory for Valencia coach Marcelino against his former club.</p>