Paris Saint-Germain defeated titleholders, Bayern Munich on away goals while Chelsea edged into the Champions League semifinals despite a late scare from Porto's acrobatic goal.
The London side reached the semis for the first time since 2014 after winning last week's first leg 2-0, although Porto gave them a late scare with Mehdi Taremi's injury-time goal.
Eric Choupo-Moting scored the only goal of a mesmeric encounter before the interval but it was not enough to overturn the German side's 3-2 loss in last week's first leg.
PSG, who had struggled at times in Munich, had the clearest chances but lacked efficiency, with Neymar hitting the woodwork twice and Kylian Mbappe's speed again proving tough to handle.
Mauricio Pochettino's PSG side, however, kept their composure in a nerve-wracking finale to book their spot in the last four against Manchester City or Borussia Dortmund as they look to reach the final for the second year in a row.
Both teams will have to wait for the Wednesday fixture to know their UEFA Champions League semifinal opponent as both 2019, 2020 finalist coaches look to book a spot in the final.