Persib needed to make a strong start and the home side thought they had pulled one back when, in the sixth minute, Berguinho headed in from close range but the striker had strayed into an offside position before nodding over the line.

Berguinho was involved again as the first half passed the midway point, bending a curling effort towards goal after Thom Haye had marched through the heart of the Ratchaburi midfield to set up his teammate for an effort that Kampon Phatomakkakul saved.

The Brazilian threatened again nine minutes prior to the interval, surging towards the penalty area to play a one-two with Patricio Matricardi but the resulting shot was off target as the Ratchaburi defence held firm.

With five minutes left in the half, Persib finally struck. Alfeandra Dewangga was released down the left and his delivery into the box was dispatched with confidence by Jung, whose goal was only confirmed after a VAR check.

Kampon kept out Haye’s strike from distance as Persib pushed for a second before the interval but those hopes were hit when referee Maajed Al Shamrani sent Barros off for a dangerous challenge on Jonathan Khemdee.

Despite being shorthanded, the home side sought to reduce the deficit further with Layvin Kurzawa going closest in the 75th minute, the substitute meeting Beckham Putra’s pass with his thigh inside the six yard box and Kampon acrobatically tipped the ball over the bar.

Tana, who scored twice for Ratchaburi in the first leg last week, could have sealed the win for the visitors when he was fed close to goal by Jesse Curran only for his under-hit shot trundle harmlessly through Teja Paku Alam.

That was to matter little, however, as Persib’s challenge ran out of steam and Ratchaburi advanced.