Virgil van Dijk showed his enormous confidence in Mo Salah by celebrating the Egyptian's goal well before he found the back of the net on Wednesday night.
Liverpool had already scored through Sadio Mane when Trent Alexander-Arnold fed a delightful through ball to Salah.
The deadly forward had an age to pick his spot and roll the ball into the net.
And such was the conviction of Van Dijk that his team-mate would score, that way back up the pitch he put his arms in the air.
Plenty of Liverpool fans caught a glimpse of Van Dijk's pre-emtive celebration and loved his supreme confidence.
One Twitter user wrote: 'Van Dijk had his arms up in celebration a good three seconds before Salah slotted it home. Belief.'
Another added: 'Virgil van Dijk celebrates before Mo Salah scores. That's belief in a goalscorer.'
Eder Militao pulled one back to give Porto faint hope but Roberto Firmino snuffed out any possible comeback and then Van Dijk powered in a header to make the score 4-1 on the night and 6-1 on aggregate.
Liverpool will now face Barcelona in the semi-final and no doubt Salah and Van Dijk will be central to their hopes of reaching the final.