Dalbert scored on his Cagliari debut, as the Sardinians beat Serie B side Vicenza 3-0 in a pre-season friendly.
The Brazilian only completed his move on loan with option to buy from Inter earlier this week.
He came off the bench in the second half and immediately made his mark, finding the back of the net on a Razvan Marin assist.
Marin was impressive, as he had also opened the scoring when set up by Kevin Strootman.
Giovanni Simeone wasted a couple of good chances, while Leonardo Pavoletti scored with a trademark header on Gabriele Zappa’s cross.
Cagliari: Cragno (Radunovic 63), Walukiewicz (Obert 76), Altare (Dalbert 46), Carboni, Zappa (Caligara 63), Strootman (Oliva 63), Marin (Biancu 63), Lykogiannis (Cavuoti 86), Pereiro (Ceter 46), Joao Pedro (Deiola 56), Simeone (Pavoletti 46)