Chelsea hung on to reach the Champions League semi-finals with a 2-1 aggregate win despite Mehdi Taremi's stunning overhead kick in added time handing Porto a 1-0 victory in the quarter-final second leg on Tuesday.
The substitute had been responsible for his side's only attempt on target as they chased a 2-0 deficit from last week's first leg but he provided an emphatic response in a cagey game with his acrobatic strike deep into added time.
Thomas Tuchel's side had a healthy lead from last week's away game in Seville and had to withstand an intense start from Porto in their home leg back at the Sanchez Pizjuan Stadium, the venue of both games due to Portugal's coronavirus restrictions.
Porto's Jesus Corona closed down Chelsea's Edouard Mendy early on but failed to make the most of the keeper's botched pass. The Mexican winger missed another good chance later in the half when he shuffled past Ben Chilwell in the area only to blast over the crossbar.
Chelsea's Mason Mount and Christian Pulisic each came close to breaking the deadlock after the interval but the Londoners were more focused on keeping Porto at bay.
"We accepted what was needed; it was a tough, tough fight," Tuchel told BT Sport.
