Lionel Messi was the star of the show, earning a perfect 10 FC Rating with a stunning performance.
Barca forward Messi made his 505th league appearance in the match to ensure he equalled the club record held by the great Xavi.
As a result, his performance and record captured much of the attention.
However, it was also a hugely positive night for Trincão in his first La Liga start. Let's take a look at the details.
📷 Trincao: Match Snapshot
Messi had a goal disallowed for a questionable offside against Antoine Griezmann before he netted a wonderful long-range strike that did stand on the stroke of half-time.
⚽ GOAL ⏱️ 74' Messi raced through on goal and was challenged by goalkeeper Fernando Pacheco. The ball fell into the path of the onrushing Trincão, who delivered a cool left-footed finish on the rebound.
Messi scored another wonderful goal a minute later and Firpo soon made it five.
Trincão thought he had a famous hat-trick late on when he scored after being slipped through by Messi, but an offside flag denied him.
The 21-year-old also had four shots, three of which were on target, and five touches in the opposition box, behind only Messi and Griezmann (both 7).
〽️ Trincao: Rating Week-on-Week
This was easily the best performance from Trincão in a Barca shirt, as he finished with an impressive 8.8 FC Rating. Only Messi was ranked higher.
That was a big improvement on the 7.2 FC Rating he got against Real Betis in his last appearance, though he also scored and impressed in that game as a substitute.
"You also have to give him the benefit of the doubt while he adapts. He is quick and he can go past people."
🗝️ Key Stats
Trincao: What Next?
Barcelona will see their season reach a pivotal point on Tuesday when they face PSG at Camp Nou in the first leg of their Champions League last-16 tie.
Despite his fine display here and the fact he started in four of the group-stage games, you would suspect Trincão is unlikely to play a prominent role in that one.
However, he should be right in the mix for the league matches against Cadiz, Elche and Sevilla that follow the PSG game.