Poised on the edge of the penalty area, the 22-year-old took one graceful touch to shift the ball away from a bamboozled defender, before rifling a lethal finish past Agustin Marchesin and into the bottom corner.
The moment of brilliance saw Thomas Tuchel's side finally unlock Porto's regimented, relentless defence, which utilised a rigid back-six when out of possession.
Speaking after Chelsea's win, which also saw left-back Ben Chillwell score a fine goal late on, talkSPORT presenter Jason Cundy claimed Mount could go on to captain both his club and country in the future, and said: “Mason’s awesome, he’s a brilliant young footballer. I think a lot of people don’t watch enough of him and may just look at his work ethic and think that’s all he’s got.
“He’s got the plus and bags of ability. On Twitter, you get a certain type of fan (criticising Mount) and some of them don’t see it and football’s about opinions – so that’s fair enough.
“A lot of rival fans don’t want to see it, but you can’t deny what he’s done. His meteoric rise he’s had, going to Vitesse and winning player of the year, he went to Derby, Frank [Lampard] plays him, Gareth [Southgate] plays him, Mr [Thomas] Tuchel plays him.
“He’s getting better. We haven’t seen the finished article, but he’s the Chelsea.captain in waiting and I think he could be England captain one day as well.”